{"id":75046,"date":"2025-09-23T06:39:52","date_gmt":"2025-09-23T06:39:52","guid":{"rendered":"https:\/\/onlineexammaker.com\/kb\/?p=75046"},"modified":"2025-11-01T05:43:56","modified_gmt":"2025-11-01T05:43:56","slug":"15-data-science-quiz-questions-and-answers-vi","status":"publish","type":"post","link":"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/","title":{"rendered":"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u"},"content":{"rendered":"<p>Khoa h\u1ecdc d\u1eef li\u1ec7u l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c li\u00ean ng\u00e0nh k\u1ebft h\u1ee3p c\u00e1c k\u1ef9 thu\u1eadt, ph\u01b0\u01a1ng ph\u00e1p v\u00e0 c\u00f4ng c\u1ee5 kh\u00e1c nhau \u0111\u1ec3 tr\u00edch xu\u1ea5t nh\u1eefng hi\u1ec3u bi\u1ebft v\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u00f3 gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u. N\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p khoa h\u1ecdc, thu\u1eadt to\u00e1n v\u00e0 ph\u00e2n t\u00edch th\u1ed1ng k\u00ea \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c m\u00f4 h\u00ecnh, xu h\u01b0\u1edbng v\u00e0 m\u1ed1i quan h\u1ec7 trong c\u00e1c b\u1ed9 d\u1eef li\u1ec7u l\u1edbn v\u00e0 ph\u1ee9c t\u1ea1p. Khoa h\u1ecdc d\u1eef li\u1ec7u \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c hi\u1ec3u, gi\u1ea3i th\u00edch v\u00e0 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t d\u1ef1a tr\u00ean b\u1eb1ng ch\u1ee9ng d\u1ef1a tr\u00ean d\u1eef li\u1ec7u.<\/p>\n<p>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a khoa h\u1ecdc d\u1eef li\u1ec7u bao g\u1ed3m:<\/p>\n<p>Thu th\u1eadp d\u1eef li\u1ec7u: Thu th\u1eadp d\u1eef li\u1ec7u c\u00f3 li\u00ean quan v\u00e0 c\u00f3 c\u1ea5u tr\u00fac t\u1eeb c\u00e1c ngu\u1ed3n kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u01a1 s\u1edf d\u1eef li\u1ec7u, c\u1ea3m bi\u1ebfn, trang web, ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i, v.v.<\/p>\n<p>L\u00e0m s\u1ea1ch d\u1eef li\u1ec7u v\u00e0 ti\u1ec1n x\u1eed l\u00fd: \u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf c\u00e1c l\u1ed7i, s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb b\u1ecb thi\u1ebfu. B\u01b0\u1edbc n\u00e0y chu\u1ea9n b\u1ecb d\u1eef li\u1ec7u \u0111\u1ec3 ph\u00e2n t\u00edch th\u00eam.<\/p>\n<p>Kh\u00e1m ph\u00e1 d\u1eef li\u1ec7u v\u00e0 tr\u1ef1c quan h\u00f3a: S\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt ph\u00e2n t\u00edch v\u00e0 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u kh\u00e1m ph\u00e1 \u0111\u1ec3 hi\u1ec3u c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 m\u1eabu trong d\u1eef li\u1ec7u.<\/p>\n<p>Ph\u00e2n t\u00edch th\u1ed1ng k\u00ea: \u00c1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 \u00fd ngh\u0129a v\u00e0 \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n d\u1ef1a tr\u00ean d\u1eef li\u1ec7u.<\/p>\n<p>H\u1ecdc m\u00e1y: Th\u1ef1c hi\u1ec7n c\u00e1c thu\u1eadt to\u00e1n v\u00e0 m\u00f4 h\u00ecnh c\u00f3 th\u1ec3 h\u1ecdc t\u1eeb d\u1eef li\u1ec7u, x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1eabu v\u00e0 \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n ho\u1eb7c ph\u00e2n lo\u1ea1i.<\/p>\n<p>Gi\u1ea3i th\u00edch v\u00e0 giao ti\u1ebfp d\u1eef li\u1ec7u: Gi\u1ea3i th\u00edch k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u v\u00e0 tr\u00ecnh b\u00e0y c\u00e1c ph\u00e1t hi\u1ec7n theo c\u00e1ch d\u1ec5 hi\u1ec3u cho c\u00e1c b\u00ean li\u00ean quan.<\/p>\n<h3>Trong b\u00e0i vi\u1ebft n\u00e0y<\/h3>\n<ul class=\"article_list\">\n<li><a href=\"#1\">Ph\u1ea7n 1: T\u1ea1o m\u1ed9t b\u00e0i ki\u1ec3m tra khoa h\u1ecdc d\u1eef li\u1ec7u trong v\u00e0i ph\u00fat b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng AI v\u1edbi OnlineExamMaker<\/a><\/li>\n<li><a href=\"#2\">Ph\u1ea7n 2: 15 C\u00e2u h\u1ecfi &#038; C\u00e2u h\u1ecfi v\u1ec1 Quiz Khoa h\u1ecdc d\u1eef li\u1ec7u<\/a><\/li>\n<li><a href=\"#3\">Ph\u1ea7n 3: Ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 n\u0103ng l\u01b0\u1ee3ng: T\u1ea1o c\u00e2u h\u1ecfi \u0111\u1ed1 vui v\u1edbi c\u00f4ng ngh\u1ec7 AI<\/a><\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/data-science.webp\" alt=\"\"\/><\/p>\n<h3 id=\"1\">Ph\u1ea7n 1: T\u1ea1o m\u1ed9t b\u00e0i ki\u1ec3m tra khoa h\u1ecdc d\u1eef li\u1ec7u trong v\u00e0i ph\u00fat b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng AI v\u1edbi OnlineExamMaker<\/h3>\n<p>B\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t \u0111\u00e1nh gi\u00e1 tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 ki\u1ec3m tra c\u00e1c k\u1ef9 n\u0103ng khoa h\u1ecdc d\u1eef li\u1ec7u c\u1ee7a ng\u01b0\u1eddi h\u1ecdc c\u1ee7a b\u1ea1n? OnlineExamMaker s\u1eed d\u1ee5ng tr\u00ed th\u00f4ng minh nh\u00e2n t\u1ea1o \u0111\u1ec3 gi\u00fap c\u00e1c nh\u00e0 t\u1ed5 ch\u1ee9c \u0111\u1ed1 \u0111\u1ec3 t\u1ea1o, qu\u1ea3n l\u00fd v\u00e0 ph\u00e2n t\u00edch c\u00e1c b\u00e0i ki\u1ec3m tra ho\u1eb7c ki\u1ec3m tra t\u1ef1 \u0111\u1ed9ng. Ngo\u00e0i c\u00e1c t\u00ednh n\u0103ng c\u1ee7a AI, c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt n\u00e2ng cao tr\u1ef1c tuy\u1ebfnExmaker nh\u01b0 tr\u00ecnh duy\u1ec7t kh\u00f3a to\u00e0n m\u00e0n h\u00ecnh, gi\u00e1m s\u00e1t webcam tr\u1ef1c tuy\u1ebfn v\u00e0 nh\u1eadn d\u1ea1ng ID Face.<\/p>\n<p><strong> C\u00e1c t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t cho b\u1ea1n: <\/strong><br \/>\n\u25cf Bao g\u1ed3m tr\u00ecnh duy\u1ec7t ki\u1ec3m tra an to\u00e0n (ch\u1ebf \u0111\u1ed9 kh\u00f3a), ghi web v\u00e0 ghi m\u00e0n h\u00ecnh, gi\u00e1m s\u00e1t tr\u1ef1c ti\u1ebfp v\u00e0 gi\u00e1m s\u00e1t tr\u00f2 chuy\u1ec7n \u0111\u1ec3 ng\u0103n ch\u1eb7n gian l\u1eadn.<br \/>\n\u25cf T\u0103ng c\u01b0\u1eddng \u0111\u00e1nh gi\u00e1 v\u1edbi tr\u1ea3i nghi\u1ec7m t\u01b0\u01a1ng t\u00e1c b\u1eb1ng c\u00e1ch nh\u00fang video, \u00e2m thanh, h\u00ecnh \u1ea3nh v\u00e0o c\u00e1c c\u00e2u \u0111\u1ed1 v\u00e0 ph\u1ea3n h\u1ed3i \u0111a ph\u01b0\u01a1ng ti\u1ec7n.<br \/>\n\u25cf Khi b\u00e0i ki\u1ec3m tra k\u1ebft th\u00fac, \u0111i\u1ec3m thi, b\u00e1o c\u00e1o c\u00e2u h\u1ecfi, x\u1ebfp h\u1ea1ng v\u00e0 d\u1eef li\u1ec7u ph\u00e2n t\u00edch kh\u00e1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xu\u1ea5t sang thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u1edf \u0111\u1ecbnh d\u1ea1ng t\u1ec7p Excel.<br \/>\n\u25cf Cung c\u1ea5p ph\u00e2n t\u00edch c\u00e2u h\u1ecfi \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e2u h\u1ecfi, gi\u00fap ng\u01b0\u1eddi h\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u h\u00f3a k\u1ebf ho\u1ea1ch \u0111\u00e0o t\u1ea1o c\u1ee7a h\u1ecd.<\/p>\n<div class=\"embed_video_blog\">\n<div class=\"embed-responsive embed-responsive-16by9\" style=\"margin-bottom:16px;\">\n <iframe class=\"embed-responsive-item\" src=\"https:\/\/www.youtube.com\/embed\/zlqho9igH2Y\"><\/iframe>\n<\/div>\n<\/div>\n<div class=\"getstarted-container\">\n<p style=\"margin-bottom: 13px;\">T\u1ef1 \u0111\u1ed9ng t\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/p>\n<div class=\"blog_double_btn clearfix\">\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/features\/ai-question-generator.html?refer=download_questions\" target=\"_blank\" rel=\"noopener\">Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI<\/a><\/div>\n<div class=\"p-style-b\">T\u1ea1o c\u00e2u h\u1ecfi cho b\u1ea5t k\u1ef3 ch\u1ee7 \u0111\u1ec1 n\u00e0o<\/div>\n<\/div>\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/sign-up.html?refer=blog_btn\"> T\u1ea1o m\u1ed9t c\u00e2u \u0111\u1ed1<\/a><\/div>\n<div class=\"p-style-b\">Mi\u1ec5n ph\u00ed 100% m\u00e3i m\u00e3i<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3 id=\"2\">Ph\u1ea7n 2: 15 C\u00e2u h\u1ecfi &#038; C\u00e2u h\u1ecfi v\u1ec1 Quiz Khoa h\u1ecdc d\u1eef li\u1ec7u<\/h3>\n<p><button id=\"copyquestionsBtn\" type=\"button\" onclick=\"myFunction()\">Sao ch\u00e9p c\u00e2u h\u1ecfi<\/button>\u00a0\u00a0or\u00a0\u00a0<button id=\"genquestionsBtn\" class=\"genbtnstyle\" type=\"button\" onclick=\"myFunction1()\">T\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/button><\/p>\n<div id=\"copy_questions\">\n<p>C\u00e2u 1: Data Science l\u00e0 g\u00ec?<br \/>\nA. M\u1ed9t l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u0111\u1ec3 r\u00fat ra insights.<br \/>\nB. M\u1ed9t lo\u1ea1i ph\u1ea7n m\u1ec1m d\u00f9ng \u0111\u1ec3 thi\u1ebft k\u1ebf website.<br \/>\nC. M\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh nh\u01b0 Python.<br \/>\nD. M\u1ed9t c\u00f4ng c\u1ee5 ph\u1ea7n c\u1ee9ng \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u.<br \/>\n\u0110\u00e1p \u00e1n: A<br \/>\nGi\u1ea3i th\u00edch: Data Science k\u1ebft h\u1ee3p to\u00e1n h\u1ecdc, th\u1ed1ng k\u00ea v\u00e0 l\u1eadp tr\u00ecnh \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u l\u1edbn nh\u1eb1m \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean d\u1eef li\u1ec7u.  <\/p>\n<p>C\u00e2u 2: Kh\u00e1i ni\u1ec7m &#8220;Big Data&#8221; th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0o?<br \/>\nA. D\u1eef li\u1ec7u c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf v\u00e0 d\u1ec5 qu\u1ea3n l\u00fd.<br \/>\nB. D\u1eef li\u1ec7u c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn, \u0111a d\u1ea1ng v\u00e0 t\u1ed1c \u0111\u1ed9 cao (Volume, Variety, Velocity).<br \/>\nC. Ch\u1ec9 d\u1eef li\u1ec7u d\u1ea1ng s\u1ed1.<br \/>\nD. D\u1eef li\u1ec7u kh\u00f4ng c\u1ea7n l\u01b0u tr\u1eef.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Big Data \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi 3V: Volume (kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn), Variety (\u0111a d\u1ea1ng lo\u1ea1i d\u1eef li\u1ec7u), v\u00e0 Velocity (t\u1ed1c \u0111\u1ed9 t\u1ea1o ra d\u1eef li\u1ec7u), gi\u00fap ph\u00e2n t\u00edch th\u00f4ng tin ph\u1ee9c t\u1ea1p.  <\/p>\n<p>C\u00e2u 3: Trong Machine Learning, thu\u1eadt to\u00e1n Supervised Learning kh\u00e1c bi\u1ec7t nh\u01b0 th\u1ebf n\u00e0o?<br \/>\nA. Kh\u00f4ng c\u1ea7n d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n.<br \/>\nB. S\u1eed d\u1ee5ng d\u1eef li\u1ec7u c\u00f3 nh\u00e3n \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n.<br \/>\nC. Ch\u1ec9 x\u1eed l\u00fd d\u1eef li\u1ec7u kh\u00f4ng c\u00f3 nh\u00e3n.<br \/>\nD. T\u1eadp trung v\u00e0o vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a ph\u1ea7n c\u1ee9ng.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Supervised Learning s\u1eed d\u1ee5ng d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n \u0111\u1ec3 hu\u1ea5n luy\u1ec7n m\u00f4 h\u00ecnh, gi\u00fap d\u1ef1 \u0111o\u00e1n k\u1ebft qu\u1ea3 cho d\u1eef li\u1ec7u m\u1edbi d\u1ef1a tr\u00ean c\u00e1c v\u00ed d\u1ee5 \u0111\u00e3 bi\u1ebft.  <\/p>\n<p>C\u00e2u 4: C\u00f4ng c\u1ee5 n\u00e0o th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u v\u00e0 tr\u1ef1c quan h\u00f3a?<br \/>\nA. Microsoft Word.<br \/>\nB. Tableau ho\u1eb7c Power BI.<br \/>\nC. Adobe Photoshop.<br \/>\nD. Excel (ch\u1ec9 cho t\u00ednh to\u00e1n c\u01a1 b\u1ea3n).<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Tableau v\u00e0 Power BI l\u00e0 c\u00e1c c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u, gi\u00fap ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng kh\u00e1m ph\u00e1 v\u00e0 tr\u00ecnh b\u00e0y insights t\u1eeb d\u1eef li\u1ec7u.  <\/p>\n<p>C\u00e2u 5: Kh\u00e1i ni\u1ec7m &#8220;Overfitting&#8221; trong Machine Learning ngh\u0129a l\u00e0 g\u00ec?<br \/>\nA. M\u00f4 h\u00ecnh qu\u00e1 \u0111\u01a1n gi\u1ea3n, kh\u00f4ng h\u1ecdc \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u.<br \/>\nB. M\u00f4 h\u00ecnh h\u1ecdc qu\u00e1 s\u00e1t d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n, d\u1eabn \u0111\u1ebfn k\u00e9m hi\u1ec7u su\u1ea5t tr\u00ean d\u1eef li\u1ec7u m\u1edbi.<br \/>\nC. M\u00f4 h\u00ecnh kh\u00f4ng c\u1ea7n d\u1eef li\u1ec7u.<br \/>\nD. M\u00f4 h\u00ecnh ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng tr\u00ean d\u1eef li\u1ec7u nh\u1ecf.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Overfitting x\u1ea3y ra khi m\u00f4 h\u00ecnh ph\u1ee9c t\u1ea1p qu\u00e1 m\u1ee9c, ghi nh\u1edb d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n thay v\u00ec h\u1ecdc quy lu\u1eadt chung, d\u1eabn \u0111\u1ebfn sai s\u1ed1 cao tr\u00ean d\u1eef li\u1ec7u ki\u1ec3m tra.  <\/p>\n<p>C\u00e2u 6: SQL \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec trong Data Science?<br \/>\nA. X\u1eed l\u00fd h\u00ecnh \u1ea3nh.<br \/>\nB. Truy v\u1ea5n v\u00e0 qu\u1ea3n l\u00fd c\u01a1 s\u1edf d\u1eef li\u1ec7u.<br \/>\nC. Thi\u1ebft k\u1ebf giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng.<br \/>\nD. Ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: SQL (Structured Query Language) l\u00e0 ng\u00f4n ng\u1eef d\u00f9ng \u0111\u1ec3 truy v\u1ea5n, th\u00eam, s\u1eeda ho\u1eb7c x\u00f3a d\u1eef li\u1ec7u t\u1eeb c\u01a1 s\u1edf d\u1eef li\u1ec7u, r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c chu\u1ea9n b\u1ecb d\u1eef li\u1ec7u cho ph\u00e2n t\u00edch.  <\/p>\n<p>C\u00e2u 7: K\u1ef9 thu\u1eadt &#8220;Cross-Validation&#8221; ph\u1ee5c v\u1ee5 m\u1ee5c \u0111\u00edch g\u00ec?<br \/>\nA. Ki\u1ec3m tra l\u1ed7i ch\u00ednh t\u1ea3 trong d\u1eef li\u1ec7u.<br \/>\nB. \u0110\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t m\u00f4 h\u00ecnh b\u1eb1ng c\u00e1ch chia d\u1eef li\u1ec7u th\u00e0nh c\u00e1c t\u1eadp con \u0111\u1ec3 hu\u1ea5n luy\u1ec7n v\u00e0 ki\u1ec3m tra.<br \/>\nC. Ch\u1ec9 d\u00f9ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u.<br \/>\nD. T\u1ed1i \u01b0u h\u00f3a b\u1ed9 nh\u1edb.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Cross-Validation gi\u00fap \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00f4 h\u00ecnh b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c t\u1eadp d\u1eef li\u1ec7u kh\u00e1c nhau, gi\u1ea3m thi\u1ec3u r\u1ee7i ro overfitting v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh t\u1ed5ng qu\u00e1t.  <\/p>\n<p>C\u00e2u 8: Python l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u1ed5 bi\u1ebfn trong Data Science v\u00ec l\u00fd do n\u00e0o?<br \/>\nA. N\u00f3 ch\u1eadm v\u00e0 kh\u00f3 h\u1ecdc.<br \/>\nB. N\u00f3 c\u00f3 th\u01b0 vi\u1ec7n m\u1ea1nh m\u1ebd nh\u01b0 NumPy, Pandas v\u00e0 Scikit-learn cho ph\u00e2n t\u00edch d\u1eef li\u1ec7u.<br \/>\nC. Ch\u1ec9 d\u00f9ng cho ph\u00e1t tri\u1ec3n web.<br \/>\nD. Kh\u00f4ng h\u1ed7 tr\u1ee3 d\u1eef li\u1ec7u l\u1edbn.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Python cung c\u1ea5p c\u00e1c th\u01b0 vi\u1ec7n chuy\u00ean d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u, x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh v\u00e0 tr\u1ef1c quan h\u00f3a, l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u trong Data Science.  <\/p>\n<p>C\u00e2u 9: Kh\u00e1i ni\u1ec7m &#8220;Regression&#8221; trong th\u1ed1ng k\u00ea l\u00e0 g\u00ec?<br \/>\nA. D\u1ef1 \u0111o\u00e1n gi\u00e1 tr\u1ecb ph\u00e2n lo\u1ea1i nh\u01b0 yes\/no.<br \/>\nB. D\u1ef1 \u0111o\u00e1n gi\u00e1 tr\u1ecb li\u00ean t\u1ee5c nh\u01b0 gi\u00e1 nh\u00e0.<br \/>\nC. Ch\u1ec9 d\u00f9ng cho d\u1eef li\u1ec7u r\u1eddi r\u1ea1c.<br \/>\nD. Ph\u00e2n t\u00edch v\u0103n b\u1ea3n.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Regression l\u00e0 k\u1ef9 thu\u1eadt d\u1ef1 \u0111o\u00e1n gi\u00e1 tr\u1ecb s\u1ed1 li\u00ean t\u1ee5c d\u1ef1a tr\u00ean c\u00e1c bi\u1ebfn \u0111\u1ed9c l\u1eadp, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u0111\u1ec3 d\u1ef1 b\u00e1o xu h\u01b0\u1edbng.  <\/p>\n<p>C\u00e2u 10: &#8220;Data Cleaning&#8221; bao g\u1ed3m nh\u1eefng b\u01b0\u1edbc n\u00e0o?<br \/>\nA. Ch\u1ec9 v\u1ebd bi\u1ec3u \u0111\u1ed3.<br \/>\nB. X\u1eed l\u00fd gi\u00e1 tr\u1ecb thi\u1ebfu, lo\u1ea1i b\u1ecf d\u1eef li\u1ec7u tr\u00f9ng l\u1eb7p v\u00e0 chuy\u1ec3n \u0111\u1ed5i \u0111\u1ecbnh d\u1ea1ng.<br \/>\nC. Thi\u1ebft k\u1ebf m\u00f4 h\u00ecnh.<br \/>\nD. In \u1ea5n b\u00e1o c\u00e1o.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Data Cleaning l\u00e0 qu\u00e1 tr\u00ecnh chu\u1ea9n b\u1ecb d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch s\u1eeda l\u1ed7i, x\u1eed l\u00fd gi\u00e1 tr\u1ecb thi\u1ebfu v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n, gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng ph\u00e2n t\u00edch.  <\/p>\n<p>C\u00e2u 11: Thu\u1eadt to\u00e1n &#8220;K-Means&#8221; thu\u1ed9c lo\u1ea1i n\u00e0o?<br \/>\nA. Supervised Learning.<br \/>\nB. Unsupervised Learning, d\u00f9ng \u0111\u1ec3 ph\u00e2n c\u1ee5m d\u1eef li\u1ec7u.<br \/>\nC. Reinforcement Learning.<br \/>\nD. Deep Learning.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: K-Means l\u00e0 thu\u1eadt to\u00e1n kh\u00f4ng gi\u00e1m s\u00e1t, ph\u00e2n nh\u00f3m d\u1eef li\u1ec7u d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111i\u1ec3m, gi\u00fap ph\u00e1t hi\u1ec7n m\u1eabu \u1ea9n m\u00e0 kh\u00f4ng c\u1ea7n nh\u00e3n.  <\/p>\n<p>C\u00e2u 12: &#8220;Neural Network&#8221; l\u00e0 g\u00ec trong Deep Learning?<br \/>\nA. M\u1ed9t m\u1ea1ng l\u01b0\u1edbi \u0111\u01a1n gi\u1ea3n nh\u01b0 c\u00e2y quy\u1ebft \u0111\u1ecbnh.<br \/>\nB. M\u1ed9t m\u00f4 h\u00ecnh h\u1ecdc s\u00e2u m\u00f4 ph\u1ecfng c\u1ea5u tr\u00fac n\u00e3o b\u1ed9, v\u1edbi c\u00e1c l\u1edbp neuron \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p.<br \/>\nC. Ch\u1ec9 d\u00f9ng cho d\u1eef li\u1ec7u h\u00ecnh \u1ea3nh.<br \/>\nD. M\u1ed9t lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Neural Network bao g\u1ed3m c\u00e1c l\u1edbp neuron k\u1ebft n\u1ed1i, h\u1ecdc t\u1eeb d\u1eef li\u1ec7u \u0111\u1ec3 nh\u1eadn di\u1ec7n m\u1eabu, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong nh\u1eadn di\u1ec7n h\u00ecnh \u1ea3nh v\u00e0 ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean.  <\/p>\n<p>C\u00e2u 13: &#8220;Ethics in Data Science&#8221; li\u00ean quan \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 n\u00e0o?<br \/>\nA. Ch\u1ec9 t\u1eadp trung v\u00e0o t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd.<br \/>\nB. B\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 d\u1eef li\u1ec7u v\u00e0 tr\u00e1nh thi\u00ean ki\u1ebfn trong m\u00f4 h\u00ecnh.<br \/>\nC. Kh\u00f4ng quan tr\u1ecdng trong ph\u00e2n t\u00edch.<br \/>\nD. Ch\u1ec9 \u00e1p d\u1ee5ng cho doanh nghi\u1ec7p l\u1edbn.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Ethics \u0111\u1ea3m b\u1ea3o r\u1eb1ng vi\u1ec7c s\u1eed d\u1ee5ng d\u1eef li\u1ec7u kh\u00f4ng vi ph\u1ea1m quy\u1ec1n ri\u00eang t\u01b0, tr\u00e1nh ph\u00e2n bi\u1ec7t \u0111\u1ed1i x\u1eed v\u00e0 th\u00fac \u0111\u1ea9y s\u1eed d\u1ee5ng d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch c\u00f3 tr\u00e1ch nhi\u1ec7m.  <\/p>\n<p>C\u00e2u 14: &#8220;Data Pipeline&#8221; l\u00e0 g\u00ec?<br \/>\nA. M\u1ed9t d\u00f2ng ch\u1ea3y d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n \u0111\u1ebfn \u0111\u00edch, bao g\u1ed3m thu th\u1eadp, x\u1eed l\u00fd v\u00e0 l\u01b0u tr\u1eef.<br \/>\nB. M\u1ed9t lo\u1ea1i ph\u1ea7n m\u1ec1m ch\u1ec9nh s\u1eeda \u1ea3nh.<br \/>\nC. Ch\u1ec9 d\u00f9ng cho d\u1eef li\u1ec7u nh\u1ecf.<br \/>\nD. M\u1ed9t c\u00f4ng c\u1ee5 tr\u1ef1c quan h\u00f3a.<br \/>\n\u0110\u00e1p \u00e1n: A<br \/>\nGi\u1ea3i th\u00edch: Data Pipeline l\u00e0 quy tr\u00ecnh t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c di chuy\u1ec3n v\u00e0 bi\u1ebfn \u0111\u1ed5i d\u1eef li\u1ec7u, gi\u00fap \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd li\u00ean t\u1ee5c v\u00e0 hi\u1ec7u qu\u1ea3.  <\/p>\n<p>C\u00e2u 15: &#8220;Predictive Analytics&#8221; s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<br \/>\nA. Ph\u00e2n t\u00edch d\u1eef li\u1ec7u l\u1ecbch s\u1eed m\u00e0 kh\u00f4ng d\u1ef1 \u0111o\u00e1n t\u01b0\u01a1ng lai.<br \/>\nB. D\u1ef1 \u0111o\u00e1n xu h\u01b0\u1edbng t\u01b0\u01a1ng lai d\u1ef1a tr\u00ean d\u1eef li\u1ec7u l\u1ecbch s\u1eed v\u00e0 m\u00f4 h\u00ecnh th\u1ed1ng k\u00ea.<br \/>\nC. Ch\u1ec9 hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u hi\u1ec7n t\u1ea1i.<br \/>\nD. X\u00f3a d\u1eef li\u1ec7u c\u0169.<br \/>\n\u0110\u00e1p \u00e1n: B<br \/>\nGi\u1ea3i th\u00edch: Predictive Analytics s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 regression v\u00e0 machine learning \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u qua \u0111\u1ec3 d\u1ef1 b\u00e1o k\u1ebft qu\u1ea3, h\u1ed7 tr\u1ee3 ra quy\u1ebft \u0111\u1ecbnh kinh doanh.<\/p>\n<\/div>\n<p><button id=\"copyquestionsBtn\" type=\"button\" onclick=\"myFunction()\">Sao ch\u00e9p c\u00e2u h\u1ecfi<\/button>\u00a0\u00a0or\u00a0\u00a0<button id=\"genquestionsBtn\" class=\"genbtnstyle\" type=\"button\" onclick=\"myFunction1()\">T\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/button><\/p>\n<h3 id=\"3\">Ph\u1ea7n 3: Ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 n\u0103ng l\u01b0\u1ee3ng: T\u1ea1o c\u00e2u h\u1ecfi \u0111\u1ed1 vui v\u1edbi c\u00f4ng ngh\u1ec7 AI<\/h3>\n<div class=\"embed_video_blog\">\n<div class=\"embed-responsive embed-responsive-16by9\" style=\"margin-bottom:16px;\">\n <iframe class=\"embed-responsive-item\" src=\"https:\/\/www.youtube.com\/embed\/zlqho9igH2Y\"><\/iframe>\n<\/div>\n<\/div>\n<div class=\"getstarted-container\">\n<p style=\"margin-bottom: 13px;\">T\u1ef1 \u0111\u1ed9ng t\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/p>\n<div class=\"blog_double_btn clearfix\">\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/features\/ai-question-generator.html?refer=download_questions\" target=\"_blank\" rel=\"noopener\">Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI<\/a><\/div>\n<div class=\"p-style-b\">T\u1ea1o c\u00e2u h\u1ecfi cho b\u1ea5t k\u1ef3 ch\u1ee7 \u0111\u1ec1 n\u00e0o<\/div>\n<\/div>\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/sign-up.html?refer=blog_btn\"> T\u1ea1o m\u1ed9t c\u00e2u \u0111\u1ed1<\/a><\/div>\n<div class=\"p-style-b\">Mi\u1ec5n ph\u00ed 100% m\u00e3i m\u00e3i<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><script src=\"https:\/\/unpkg.com\/@popperjs\/core@2\"><\/script><br \/>\n<script src=\"https:\/\/unpkg.com\/tippy.js@6\"><\/script><\/p>\n<p><script type=\"text\/javascript\">\nfunction myFunction() {\nvar copyText = document.getElementById(\"copy_questions\");console.log(copyText.innerText);navigator.clipboard.writeText(copyText.innerText);\n}\nfunction myFunction1() {\n\u00a0  \u00a0 \u00a0 window.open(\"https:\/\/onlineexammaker.com\/features\/ai-question-generator.html\");\n\u00a0 }\nvar copy1, copy2;\n        tippy('#copyquestionsBtn', {\n        'content': \"Copy questions to clipboard\",\n       trigger: 'mouseenter',\n       'onCreate':function(instance){\n              copy1 = instance;\n       },\n       'onTrigger' : function(instance, event) {\n              copy2.hide();\n       }\n       });\n       tippy('#copyquestionsBtn', {\n       'content': \"Copied successfully\",\n       trigger: 'click',\n       'onCreate':function(instance){\n              copy2 = instance;\n       },\n       'onTrigger' : function(instance, event) {\n              copy1.hide();\n       }\n       });\ntippy('#genquestionsBtn', {\n        'content': \"Generate questions using AI for free\",\n         trigger: 'mouseenter'\n       });\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khoa h\u1ecdc d\u1eef li\u1ec7u l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c li\u00ean ng\u00e0nh k\u1ebft h\u1ee3p c\u00e1c k\u1ef9 thu\u1eadt, ph\u01b0\u01a1ng ph\u00e1p v\u00e0 c\u00f4ng c\u1ee5 kh\u00e1c nhau \u0111\u1ec3 tr\u00edch xu\u1ea5t nh\u1eefng hi\u1ec3u bi\u1ebft v\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u00f3 gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u. N\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p khoa h\u1ecdc, thu\u1eadt to\u00e1n v\u00e0 ph\u00e2n t\u00edch th\u1ed1ng [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":14040,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6049],"tags":[],"class_list":["post-75046","post","type-post","status-publish","format-standard","hentry","category-questions-answers-vi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u - OnlineExamMaker Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u - OnlineExamMaker Blog\" \/>\n<meta property=\"og:description\" content=\"Khoa h\u1ecdc d\u1eef li\u1ec7u l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c li\u00ean ng\u00e0nh k\u1ebft h\u1ee3p c\u00e1c k\u1ef9 thu\u1eadt, ph\u01b0\u01a1ng ph\u00e1p v\u00e0 c\u00f4ng c\u1ee5 kh\u00e1c nhau \u0111\u1ec3 tr\u00edch xu\u1ea5t nh\u1eefng hi\u1ec3u bi\u1ebft v\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u00f3 gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u. N\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p khoa h\u1ecdc, thu\u1eadt to\u00e1n v\u00e0 ph\u00e2n t\u00edch th\u1ed1ng [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/\" \/>\n<meta property=\"og:site_name\" content=\"OnlineExamMaker Blog\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-23T06:39:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-01T05:43:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/data-science.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"850\" \/>\n\t<meta property=\"og:image:height\" content=\"464\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Rebecca\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rebecca\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/\",\"url\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/\",\"name\":\"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u - OnlineExamMaker Blog\",\"isPartOf\":{\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#website\"},\"datePublished\":\"2025-09-23T06:39:52+00:00\",\"dateModified\":\"2025-11-01T05:43:56+00:00\",\"author\":{\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/8447ed5937ab8046fa68476e432b32b2\"},\"breadcrumb\":{\"@id\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/onlineexammaker.com\/kb\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#website\",\"url\":\"https:\/\/onlineexammaker.com\/kb\/\",\"name\":\"OnlineExamMaker Blog\",\"description\":\"OnlineExamMaker\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/onlineexammaker.com\/kb\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/8447ed5937ab8046fa68476e432b32b2\",\"name\":\"Rebecca\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/5f03edf06dd3745ea73e610a6d830a63?s=96&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/5f03edf06dd3745ea73e610a6d830a63?s=96&r=g\",\"caption\":\"Rebecca\"},\"url\":\"https:\/\/onlineexammaker.com\/kb\/author\/rebeccaoem\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u - OnlineExamMaker Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/","og_locale":"en_US","og_type":"article","og_title":"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u - OnlineExamMaker Blog","og_description":"Khoa h\u1ecdc d\u1eef li\u1ec7u l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c li\u00ean ng\u00e0nh k\u1ebft h\u1ee3p c\u00e1c k\u1ef9 thu\u1eadt, ph\u01b0\u01a1ng ph\u00e1p v\u00e0 c\u00f4ng c\u1ee5 kh\u00e1c nhau \u0111\u1ec3 tr\u00edch xu\u1ea5t nh\u1eefng hi\u1ec3u bi\u1ebft v\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u00f3 gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u. N\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p khoa h\u1ecdc, thu\u1eadt to\u00e1n v\u00e0 ph\u00e2n t\u00edch th\u1ed1ng [&hellip;]","og_url":"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/","og_site_name":"OnlineExamMaker Blog","article_published_time":"2025-09-23T06:39:52+00:00","article_modified_time":"2025-11-01T05:43:56+00:00","og_image":[{"width":850,"height":464,"url":"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/data-science.webp","type":"image\/webp"}],"author":"Rebecca","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Rebecca","Est. reading time":"15 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/","url":"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/","name":"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u - OnlineExamMaker Blog","isPartOf":{"@id":"https:\/\/onlineexammaker.com\/kb\/#website"},"datePublished":"2025-09-23T06:39:52+00:00","dateModified":"2025-11-01T05:43:56+00:00","author":{"@id":"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/8447ed5937ab8046fa68476e432b32b2"},"breadcrumb":{"@id":"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/onlineexammaker.com\/kb\/vi\/15-data-science-quiz-questions-and-answers-vi\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/onlineexammaker.com\/kb\/"},{"@type":"ListItem","position":2,"name":"15 C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi c\u1ee7a Khoa h\u1ecdc D\u1eef li\u1ec7u"}]},{"@type":"WebSite","@id":"https:\/\/onlineexammaker.com\/kb\/#website","url":"https:\/\/onlineexammaker.com\/kb\/","name":"OnlineExamMaker Blog","description":"OnlineExamMaker","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/onlineexammaker.com\/kb\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/8447ed5937ab8046fa68476e432b32b2","name":"Rebecca","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/5f03edf06dd3745ea73e610a6d830a63?s=96&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/5f03edf06dd3745ea73e610a6d830a63?s=96&r=g","caption":"Rebecca"},"url":"https:\/\/onlineexammaker.com\/kb\/author\/rebeccaoem\/"}]}},"_links":{"self":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts\/75046"}],"collection":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/comments?post=75046"}],"version-history":[{"count":1,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts\/75046\/revisions"}],"predecessor-version":[{"id":75047,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts\/75046\/revisions\/75047"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/media\/14040"}],"wp:attachment":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/media?parent=75046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/categories?post=75046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/tags?post=75046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}