{"id":11011,"date":"2026-01-10T05:05:07","date_gmt":"2026-01-09T21:05:07","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/vn\/20922-2\/"},"modified":"2026-01-10T05:05:07","modified_gmt":"2026-01-09T21:05:07","slug":"20922-2","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/vn\/20922-2\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn v\u1ec1 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n: H\u01b0\u1edbng d\u1eabn nhanh"},"content":{"rendered":"<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>Trong l\u0129nh v\u1ef1c ph\u00e2n t\u00edch v\u00e0 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u, bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 \u0111\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c bi\u1ebfn s\u1ed1. Trong tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 n\u00e0y, ch\u00fang t\u00f4i \u0111\u00e3 t\u1ea1o ra m\u1ed9t bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n \u0111\u1ec3 kh\u00e1m ph\u00e1 m\u1ed1i li\u00ean h\u1ec7 th\u00fa v\u1ecb gi\u1eefa chi\u1ec1u d\u00e0i c\u00e1nh tay v\u00e0 chi\u1ec1u cao \u1edf m\u1ed9t nh\u00f3m h\u1ecdc sinh l\u1edbp 11. Bi\u1ec3u \u0111\u1ed3 tr\u1ef1c quan n\u00e0y, g\u1ed3m t\u00e1m \u0111i\u1ec3m d\u1eef li\u1ec7u ri\u00eang l\u1ebb, gi\u00fap ch\u00fang ta nghi\u00ean c\u1ee9u s\u00e2u h\u01a1n v\u1ec1 m\u1ed1i quan h\u1ec7 gi\u1eefa hai \u0111\u1eb7c tr\u01b0ng n\u00e0y. B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch c\u00e1c m\u1eabu trong bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n v\u1ec1 chi\u1ec1u d\u00e0i c\u00e1nh tay d\u1ef1a tr\u00ean chi\u1ec1u cao v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Ph\u00e2n t\u00edch n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m s\u00e1ng t\u1ecf c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m th\u1ec3 ch\u1ea5t c\u1ee7a c\u00e1c h\u1ecdc sinh m\u00e0 c\u00f2n minh ch\u1ee9ng cho s\u1ee9c m\u1ea1nh c\u1ee7a bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n trong vi\u1ec7c l\u00e0m r\u00f5 c\u00e1c m\u1ed1i t\u01b0\u01a1ng quan.<\/p>\n<p><img alt=\"Scatter chart example\" decoding=\"async\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/scatter-chart-example.png\"\/><\/p>\n<h2>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n l\u00e0 g\u00ec<\/h2>\n<p>M\u1ed9t <a href=\"https:\/\/online.visual-paradigm.com\/knowledge\/data-visualization\/what-is-scatter-diagram\/\">bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n<\/a>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n ho\u1eb7c \u0111\u1ed3 th\u1ecb ph\u00e2n t\u00e1n, l\u00e0 m\u1ed9t d\u1ea1ng tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u d\u00f9ng \u0111\u1ec3 hi\u1ec3n th\u1ecb m\u1ed1i quan h\u1ec7 gi\u1eefa hai bi\u1ebfn s\u1ed1. M\u1ed7i \u0111i\u1ec3m tr\u00ean bi\u1ec3u \u0111\u1ed3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t \u0111i\u1ec3m d\u1eef li\u1ec7u ri\u00eang l\u1ebb, v\u00e0 v\u1ecb tr\u00ed c\u1ee7a \u0111i\u1ec3m n\u00e0y \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi gi\u00e1 tr\u1ecb c\u1ee7a hai bi\u1ebfn s\u1ed1. Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n h\u1eefu \u00edch trong vi\u1ec7c ph\u00e1t hi\u1ec7n c\u00e1c m\u1eabu, xu h\u01b0\u1edbng v\u00e0 m\u1ed1i t\u01b0\u01a1ng quan trong d\u1eef li\u1ec7u. D\u01b0\u1edbi \u0111\u00e2y, t\u00f4i s\u1ebd cung c\u1ea5p m\u1ed9t gi\u1ea3i th\u00edch to\u00e0n di\u1ec7n v\u1ec1 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n v\u00e0 c\u00e1c v\u00ed d\u1ee5 minh h\u1ecda c\u00e1ch s\u1eed d\u1ee5ng ch\u00fang.<\/p>\n<p><strong>C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n:<\/strong><\/p>\n<ol>\n<li><strong>Tr\u1ee5c X:<\/strong>Tr\u1ee5c ngang \u0111\u1ea1i di\u1ec7n cho m\u1ed9t trong c\u00e1c bi\u1ebfn s\u1ed1 \u0111ang \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch.<\/li>\n<li><strong>Tr\u1ee5c Y:<\/strong>Tr\u1ee5c d\u1ecdc \u0111\u1ea1i di\u1ec7n cho bi\u1ebfn s\u1ed1 c\u00f2n l\u1ea1i \u0111ang \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch.<\/li>\n<li><strong>C\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u:<\/strong>M\u1ed7i \u0111i\u1ec3m d\u1eef li\u1ec7u tr\u00ean bi\u1ec3u \u0111\u1ed3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t quan s\u00e1t ho\u1eb7c c\u1eb7p d\u1eef li\u1ec7u ri\u00eang l\u1ebb, v\u1edbi m\u1ed9t gi\u00e1 tr\u1ecb cho bi\u1ebfn s\u1ed1 tr\u1ee5c X v\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb kh\u00e1c cho bi\u1ebfn s\u1ed1 tr\u1ee5c Y.<\/li>\n<li><strong>Ti\u00eau \u0111\u1ec1:<\/strong>Ti\u00eau \u0111\u1ec1 \u1edf \u0111\u1ea7u bi\u1ec3u \u0111\u1ed3 cung c\u1ea5p b\u1ed1i c\u1ea3nh v\u00e0 th\u00f4ng tin v\u1ec1 n\u1ed9i dung bi\u1ec3u \u0111\u1ed3 \u0111ang th\u1ec3 hi\u1ec7n.<\/li>\n<li><strong>Nh\u00e3n tr\u1ee5c:<\/strong>Nh\u00e3n tr\u00ean tr\u1ee5c X v\u00e0 tr\u1ee5c Y cung c\u1ea5p th\u00f4ng tin v\u1ec1 \u0111\u01a1n v\u1ecb ho\u1eb7c lo\u1ea1i d\u1eef li\u1ec7u c\u1ee7a c\u00e1c bi\u1ebfn s\u1ed1.<\/li>\n<li><strong>Ch\u00fa th\u00edch:<\/strong>N\u1ebfu nhi\u1ec1u b\u1ed9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u00ean c\u00f9ng m\u1ed9t bi\u1ec3u \u0111\u1ed3, ch\u00fa th\u00edch c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n bi\u1ec7t ch\u00fang.<\/li>\n<\/ol>\n<p><strong>V\u00ed d\u1ee5 v\u1ec1 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n:<\/strong><\/p>\n<div class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\" data-testid=\"conversation-turn-7\">\n<div class=\"p-4 justify-center text-base md:gap-6 md:py-6 m-auto\">\n<div class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }\">\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\">\n<div class=\"flex flex-grow flex-col gap-3 max-w-full\">\n<div class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n th\u1ec3 hi\u1ec7n nhi\u1ec1u m\u1eabu t\u01b0\u01a1ng quan kh\u00e1c nhau, m\u1ed7i m\u1eabu ph\u1ea3n \u00e1nh m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa c\u00e1c gi\u00e1 tr\u1ecb X v\u00e0 Y. \u0110\u1ec3 minh h\u1ecda c\u00e1c m\u1eabu n\u00e0y, ch\u00fang ta h\u00e3y \u0111\u01b0a ra v\u00ed d\u1ee5 cho t\u1eebng lo\u1ea1i:<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<ol>\n<li><strong>T\u01b0\u01a1ng quan d\u01b0\u01a1ng m\u1ea1nh:<\/strong>\n<ul>\n<li><strong>\u0110\u1ecbnh ngh\u0129a:<\/strong>Gi\u00e1 tr\u1ecb c\u1ee7a Y t\u0103ng khi gi\u00e1 tr\u1ecb c\u1ee7a X t\u0103ng.<\/li>\n<li><strong>V\u00ed d\u1ee5:<\/strong>Trong m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 s\u1ed1 gi\u1edd d\u00e0nh \u0111\u1ec3 h\u1ecdc v\u00e0 \u0111i\u1ec3m s\u1ed1 b\u00e0i ki\u1ec3m tra, khi s\u1ed1 gi\u1edd h\u1ecdc (X) t\u0103ng l\u00ean, \u0111i\u1ec3m s\u1ed1 b\u00e0i ki\u1ec3m tra (Y) c\u0169ng t\u0103ng theo. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed1i t\u01b0\u01a1ng quan d\u01b0\u01a1ng m\u1ea1nh.<\/li>\n<\/ul>\n<\/li>\n<li><strong>T\u01b0\u01a1ng quan \u00e2m m\u1ea1nh:<\/strong>\n<ul>\n<li><strong>\u0110\u1ecbnh ngh\u0129a:<\/strong>Gi\u00e1 tr\u1ecb c\u1ee7a Y gi\u1ea3m khi gi\u00e1 tr\u1ecb c\u1ee7a X t\u0103ng.<\/li>\n<li><strong>V\u00ed d\u1ee5:<\/strong>Trong m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 l\u01b0\u1ee3ng m\u01b0a v\u00e0 s\u1ed1 gi\u1edd con ng\u01b0\u1eddi d\u00e0nh ngo\u00e0i tr\u1eddi, khi l\u01b0\u1ee3ng m\u01b0a (X) t\u0103ng l\u00ean, s\u1ed1 gi\u1edd d\u00e0nh ngo\u00e0i tr\u1eddi (Y) gi\u1ea3m \u0111i. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed1i t\u01b0\u01a1ng quan \u00e2m m\u1ea1nh.<\/li>\n<\/ul>\n<\/li>\n<li><strong>T\u01b0\u01a1ng quan d\u01b0\u01a1ng y\u1ebfu:<\/strong>\n<ul>\n<li><strong>\u0110\u1ecbnh ngh\u0129a:<\/strong>Gi\u00e1 tr\u1ecb c\u1ee7a Y t\u0103ng nh\u1eb9 khi gi\u00e1 tr\u1ecb c\u1ee7a X t\u0103ng l\u00ean.<\/li>\n<li><strong>V\u00ed d\u1ee5:<\/strong>Ph\u00e2n t\u00edch \u0111\u1ed9 tu\u1ed5i c\u1ee7a c\u00e1c c\u00e1 nh\u00e2n v\u00e0 thu nh\u1eadp h\u00e0ng n\u0103m, b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng khi \u0111\u1ed9 tu\u1ed5i (X) t\u0103ng l\u00ean, thu nh\u1eadp (Y) t\u0103ng nh\u1eb9. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed1i t\u01b0\u01a1ng quan d\u01b0\u01a1ng y\u1ebfu.<\/li>\n<\/ul>\n<\/li>\n<li><strong>T\u01b0\u01a1ng quan \u00e2m y\u1ebfu:<\/strong>\n<ul>\n<li><strong>\u0110\u1ecbnh ngh\u0129a:<\/strong>Gi\u00e1 tr\u1ecb c\u1ee7a Y gi\u1ea3m nh\u1eb9 khi gi\u00e1 tr\u1ecb c\u1ee7a X t\u0103ng l\u00ean.<\/li>\n<li><strong>V\u00ed d\u1ee5:<\/strong>Nghi\u00ean c\u1ee9u th\u1eddi gian di chuy\u1ec3n \u0111\u1ebfn n\u01a1i l\u00e0m vi\u1ec7c v\u00e0 m\u1ee9c n\u0103ng l\u01b0\u1ee3ng, b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y r\u1eb1ng khi th\u1eddi gian di chuy\u1ec3n (X) t\u0103ng nh\u1eb9, m\u1ee9c n\u0103ng l\u01b0\u1ee3ng (Y) gi\u1ea3m nh\u1eb9. \u0110i\u1ec1u n\u00e0y g\u1ee3i \u00fd m\u1ed1i t\u01b0\u01a1ng quan \u00e2m y\u1ebfu.<\/li>\n<\/ul>\n<\/li>\n<li><strong>T\u01b0\u01a1ng quan ph\u1ee9c t\u1ea1p:<\/strong>\n<ul>\n<li><strong>\u0110\u1ecbnh ngh\u0129a:<\/strong>Gi\u00e1 tr\u1ecb c\u1ee7a Y d\u01b0\u1eddng nh\u01b0 li\u00ean quan \u0111\u1ebfn gi\u00e1 tr\u1ecb c\u1ee7a X, nh\u01b0ng m\u1ed1i quan h\u1ec7 n\u00e0y kh\u00f4ng d\u1ec5 x\u00e1c \u0111\u1ecbnh.<\/li>\n<li><strong>V\u00ed d\u1ee5:<\/strong>Trong ph\u00e2n t\u00edch chi ph\u00ed qu\u1ea3ng c\u00e1o v\u00e0 doanh s\u1ed1 s\u1ea3n ph\u1ea9m, m\u1ed1i quan h\u1ec7 gi\u1eefa hai y\u1ebfu t\u1ed1 n\u00e0y c\u00f3 th\u1ec3 tr\u00f4ng ph\u1ee9c t\u1ea1p, v\u1edbi nh\u1eefng bi\u1ebfn \u0111\u1ed9ng v\u00e0 kh\u00f4ng c\u00f3 h\u01b0\u1edbng r\u00f5 r\u00e0ng.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Kh\u00f4ng c\u00f3 t\u01b0\u01a1ng quan:<\/strong>\n<ul>\n<li><strong>\u0110\u1ecbnh ngh\u0129a:<\/strong>Kh\u00f4ng c\u00f3 m\u1ed1i li\u00ean h\u1ec7 \u0111\u01b0\u1ee3c ch\u1ee9ng minh gi\u1eefa hai bi\u1ebfn s\u1ed1.<\/li>\n<li><strong>V\u00ed d\u1ee5:<\/strong>N\u1ebfu b\u1ea1n xem x\u00e9t k\u00edch c\u1ee1 gi\u00e0y v\u00e0 \u0111i\u1ec3m s\u1ed1 IQ, b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng kh\u00f4ng c\u00f3 m\u1ed1i quan h\u1ec7 \u0111\u00e1ng k\u1ec3 gi\u1eefa ch\u00fang. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, kh\u00f4ng c\u00f3 t\u01b0\u01a1ng quan.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c m\u1eabu t\u01b0\u01a1ng quan n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 di\u1ec5n gi\u1ea3i bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n v\u00e0 r\u00fat ra nh\u1eefng k\u1ebft lu\u1eadn c\u00f3 \u00fd ngh\u0129a t\u1eeb d\u1eef li\u1ec7u. Ph\u00e2n t\u00edch t\u01b0\u01a1ng quan gi\u00fap \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n, hi\u1ec3u m\u1ed1i quan h\u1ec7 nh\u00e2n qu\u1ea3 v\u00e0 ph\u00e1t hi\u1ec7n xu h\u01b0\u1edbng trong nhi\u1ec1u l\u0129nh v\u1ef1c nh\u01b0 kinh t\u1ebf, khoa h\u1ecdc x\u00e3 h\u1ed9i v\u00e0 khoa h\u1ecdc t\u1ef1 nhi\u00ean.<\/p>\n<p><strong>T\u01b0\u01a1ng quan d\u01b0\u01a1ng m\u1ea1nh<\/strong><\/p>\n<p><img alt=\"Scatter chart example - Strong positive correlation\" class=\"alignnone wp-image-2778 size-full\" decoding=\"async\" height=\"534\" loading=\"lazy\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/scatter-chart-example-strong-positive-correlation.png\" width=\"744\"\/><\/p>\n<p><a class=\"knowledge-btn\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=ScatterChart&amp;gallery=\/repository\/f6e3feaa-7be5-4fbb-8b06-6642f3077e5e.xml&amp;name=Day%20of%20Planting%20vs%20Plant%20Height\" rel=\"noopener\" target=\"_blank\">Ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 n\u00e0y<\/a><\/p>\n<p><strong>T\u01b0\u01a1ng quan \u00e2m m\u1ea1nh<\/strong><\/p>\n<p><img alt=\"Scatter chart example - Strong negative correlation\" class=\"alignnone wp-image-2784 size-full\" decoding=\"async\" height=\"534\" loading=\"lazy\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/scatter-chart-example-strong-negative-correlation.png\" width=\"744\"\/><\/p>\n<p><a class=\"knowledge-btn\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=ScatterChart&amp;gallery=\/repository\/38c71114-799b-44bb-b181-28f2582657a1.xml&amp;name=Exercise%20vs%20Weight\" rel=\"noopener\" target=\"_blank\">Ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 n\u00e0y<\/a><\/p>\n<p><strong>T\u01b0\u01a1ng quan d\u01b0\u01a1ng y\u1ebfu<\/strong><\/p>\n<p><img alt=\"Scatter chart example - Weak positive correlation\" class=\"alignnone wp-image-2779 size-full\" decoding=\"async\" height=\"534\" loading=\"lazy\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/scatter-chart-example-weak-positive-correlation.png\" width=\"744\"\/><\/p>\n<p><a class=\"knowledge-btn\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=ScatterChart&amp;gallery=\/repository\/9789aedd-12d6-4021-ae18-2f9be704b4b3.xml&amp;name=Age%20vs%20Customer%20Satisfaction\" rel=\"noopener\" target=\"_blank\">Ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 n\u00e0y<\/a><\/p>\n<p><strong>T\u01b0\u01a1ng quan ph\u1ee9c t\u1ea1p<\/strong><\/p>\n<p><img alt=\"Scatter chart example - Complex correlation\" class=\"alignnone wp-image-2782 size-full\" decoding=\"async\" height=\"534\" loading=\"lazy\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/scatter-chart-example-complex-correlation.png\" width=\"744\"\/><\/p>\n<p><a class=\"knowledge-btn\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=ScatterChart&amp;gallery=\/repository\/acda7181-e44d-44ba-bede-58c3e34aa185.xml&amp;name=Age%20vs%20Expenditure%20on%20Entertainment\" rel=\"noopener\" target=\"_blank\">Ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 n\u00e0y<\/a><\/p>\n<p><strong><br \/>\nKh\u00f4ng c\u00f3 t\u01b0\u01a1ng quan<\/strong><\/p>\n<p><img alt=\"Scatter chart example - No correlation\" class=\"alignnone wp-image-2783 size-full\" decoding=\"async\" height=\"534\" loading=\"lazy\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/scatter-chart-example-no-correlation.png\" width=\"744\"\/><\/p>\n<p><a class=\"knowledge-btn\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=ScatterChart&amp;gallery=\/repository\/2d11bfc1-ce5e-4c9d-a94e-0505f60a3914.xml&amp;name=Age%20vs%20Internet%20Usage\" rel=\"noopener\" target=\"_blank\">Ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 n\u00e0y<\/a><\/p>\n<p>\u00a0<\/p>\n<h2>V\u00ed d\u1ee5 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n: Chi\u1ec1u d\u00e0i c\u00e1nh tay so v\u1edbi l\u1edbp 11<\/h2>\n<p>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n \u1edf tr\u00ean minh h\u1ecda d\u1eef li\u1ec7u v\u1ec1 chi\u1ec1u cao v\u00e0 chi\u1ec1u d\u00e0i c\u00e1nh tay c\u1ee7a t\u00e1m h\u1ecdc sinh l\u1edbp 11. B\u1eb1ng c\u00e1ch xem x\u00e9t m\u1ed1i quan h\u1ec7 gi\u1eefa chi\u1ec1u cao v\u00e0 chi\u1ec1u d\u00e0i c\u00e1nh tay c\u1ee7a m\u1ed9t h\u1ecdc sinh, ch\u00fang ta c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y m\u1ed9t xu h\u01b0\u1edbng. Xu h\u01b0\u1edbng n\u00e0y cho ph\u00e9p ch\u00fang ta \u01b0\u1edbc t\u00ednh chi\u1ec1u d\u00e0i c\u00e1nh tay c\u1ee7a m\u1ed9t h\u1ecdc sinh d\u1ef1a tr\u00ean chi\u1ec1u cao \u0111\u00e3 cho, v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Trong bi\u1ec3u \u0111\u1ed3 n\u00e0y, r\u00f5 r\u00e0ng l\u00e0 c\u00f3 m\u1ed1i t\u01b0\u01a1ng quan d\u01b0\u01a1ng gi\u1eefa chi\u1ec1u d\u00e0i c\u00e1nh tay v\u00e0 chi\u1ec1u cao.<\/p>\n<p><img alt=\"Scatter chart example - Arm length on guide 11\" decoding=\"async\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/scatter-chart-example-arm-length-on-guide-11.png\"\/><\/p>\n<p>Sau khi x\u00e1c l\u1eadp m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa c\u00e1c bi\u1ebfn n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n v\u1ec1 h\u00e0nh vi c\u1ee7a bi\u1ebfn ph\u1ee5 thu\u1ed9c d\u1ef1a tr\u00ean c\u00e1c \u0111o l\u01b0\u1eddng c\u1ee7a bi\u1ebfn \u0111\u1ed9c l\u1eadp. Bi\u1ec3u \u0111\u1ed3 n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi m\u1ed9t trong hai bi\u1ebfn d\u1ec5 \u0111o l\u01b0\u1eddng h\u01a1n bi\u1ebfn c\u00f2n l\u1ea1i. V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t h\u1ecdc sinh l\u1edbp 11 c\u00f3 chi\u1ec1u cao 148 cm, ch\u00fang ta c\u00f3 th\u1ec3 \u01b0\u1edbc t\u00ednh chi\u1ec1u d\u00e0i c\u00e1nh tay c\u1ee7a h\u1ecd kho\u1ea3ng 84 cm.<\/p>\n<h2><strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n<p>Trong bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n n\u00e0y, ch\u00fang ta \u0111\u00e3 kh\u00e1m ph\u00e1 nh\u1eefng n\u1ec1n t\u1ea3ng c\u1ee7a bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n v\u00e0 vai tr\u00f2 thi\u1ebft y\u1ebfu c\u1ee7a ch\u00fang trong tr\u1ef1c quan h\u00f3a v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u. Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n cung c\u1ea5p m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 minh h\u1ecda m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c bi\u1ebfn v\u00e0 ph\u00e1t hi\u1ec7n c\u00e1c m\u1eabu trong d\u1eef li\u1ec7u. H\u00e3y c\u00f9ng t\u00f3m t\u1eaft m\u1ed9t s\u1ed1 \u0111i\u1ec3m ch\u00ednh t\u1eeb h\u01b0\u1edbng d\u1eabn n\u00e0y:<\/p>\n<ol>\n<li><strong>\u0110\u1ecbnh ngh\u0129a bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n:<\/strong>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n ho\u1eb7c \u0111\u1ed3 th\u1ecb ph\u00e2n t\u00e1n, hi\u1ec3n th\u1ecb c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u tr\u00ean m\u1ed9t m\u1eb7t ph\u1eb3ng hai chi\u1ec1u, m\u1ed7i \u0111i\u1ec3m \u0111\u1ea1i di\u1ec7n cho m\u1ed9t quan s\u00e1t duy nh\u1ea5t ho\u1eb7c m\u1ed9t c\u1eb7p d\u1eef li\u1ec7u.<\/li>\n<li><strong>C\u00e1c bi\u1ebfn v\u00e0 tr\u1ee5c:<\/strong>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n th\u01b0\u1eddng bao g\u1ed3m hai tr\u1ee5c: tr\u1ee5c X v\u00e0 tr\u1ee5c Y. Hai tr\u1ee5c n\u00e0y \u0111\u1ea1i di\u1ec7n cho c\u00e1c bi\u1ebfn \u0111ang \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u, gi\u00fap ch\u00fang ta h\u00ecnh dung \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 gi\u1eefa s\u1ef1 thay \u0111\u1ed5i c\u1ee7a m\u1ed9t bi\u1ebfn v\u1edbi s\u1ef1 thay \u0111\u1ed5i c\u1ee7a bi\u1ebfn kia.<\/li>\n<li><strong>C\u00e1c m\u1eabu t\u01b0\u01a1ng quan:<\/strong>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n gi\u00fap ch\u00fang ta nh\u1eadn di\u1ec7n c\u00e1c m\u1eabu t\u01b0\u01a1ng quan kh\u00e1c nhau gi\u1eefa c\u00e1c bi\u1ebfn. C\u00e1c m\u1eabu n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh t\u01b0\u01a1ng quan d\u01b0\u01a1ng m\u1ea1nh, t\u01b0\u01a1ng quan \u00e2m m\u1ea1nh, t\u01b0\u01a1ng quan d\u01b0\u01a1ng y\u1ebfu, t\u01b0\u01a1ng quan \u00e2m y\u1ebfu, t\u01b0\u01a1ng quan ph\u1ee9c t\u1ea1p ho\u1eb7c kh\u00f4ng c\u00f3 t\u01b0\u01a1ng quan.<\/li>\n<li><strong>C\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf:<\/strong>Trong su\u1ed1t h\u01b0\u1edbng d\u1eabn, ch\u00fang t\u00f4i \u0111\u00e3 cung c\u1ea5p c\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf \u0111\u1ec3 minh h\u1ecda t\u1eebng m\u1eabu t\u01b0\u01a1ng quan n\u00e0y. T\u1eeb vi\u1ec7c nghi\u00ean c\u1ee9u chi\u1ec1u cao v\u00e0 chi\u1ec1u d\u00e0i c\u00e1nh tay h\u1ecdc sinh \u0111\u1ebfn ph\u00e2n t\u00edch m\u1ed1i quan h\u1ec7 gi\u1eefa s\u1ed1 gi\u1edd h\u1ecdc v\u00e0 \u0111i\u1ec3m thi, ch\u00fang t\u00f4i \u0111\u00e3 th\u1ea5y c\u00e1ch bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau.<\/li>\n<li><strong>N\u0103ng l\u1ef1c d\u1ef1 \u0111o\u00e1n:<\/strong>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n cho ph\u00e9p ch\u00fang ta \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n v\u1ec1 m\u1ed9t bi\u1ebfn d\u1ef1a tr\u00ean bi\u1ebfn kia, cung c\u1ea5p nh\u1eefng th\u00f4ng tin qu\u00fd gi\u00e1 cho vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh v\u00e0 hi\u1ec3u r\u00f5 m\u1ed1i quan h\u1ec7 nh\u00e2n qu\u1ea3.<\/li>\n<li><strong>D\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p:<\/strong>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n l\u00e0 c\u00f4ng c\u1ee5 linh ho\u1ea1t c\u00f3 th\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p, k\u1ec3 c\u1ea3 nh\u1eefng t\u00ecnh hu\u1ed1ng m\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c bi\u1ebfn kh\u00f4ng r\u00f5 r\u00e0ng.<\/li>\n<li><strong>Gi\u1ea3i th\u00edch d\u1eef li\u1ec7u:<\/strong>Kh\u1ea3 n\u0103ng gi\u1ea3i th\u00edch bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u, chuy\u00ean gia ph\u00e2n t\u00edch v\u00e0 b\u1ea5t k\u1ef3 ai mu\u1ed1n r\u00fat ra k\u1ebft lu\u1eadn c\u00f3 \u00fd ngh\u0129a t\u1eeb d\u1eef li\u1ec7u.<\/li>\n<li><strong>\u1ee8ng d\u1ee5ng th\u1ef1c ti\u1ec5n:<\/strong>Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c \u0111a d\u1ea1ng nh\u01b0 kinh t\u1ebf, khoa h\u1ecdc x\u00e3 h\u1ed9i, khoa h\u1ecdc t\u1ef1 nhi\u00ean, k\u1ef9 thu\u1eadt v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c. Ch\u00fang gi\u00fap x\u00e1c \u0111\u1ecbnh xu h\u01b0\u1edbng, m\u1ed1i t\u01b0\u01a1ng quan v\u00e0 c\u00e1c \u0111i\u1ec3m ngo\u1ea1i l\u1ec7 trong b\u1ed9 d\u1eef li\u1ec7u.<\/li>\n<\/ol>\n<p>B\u1eb1ng c\u00e1ch th\u00e0nh th\u1ea1o ngh\u1ec7 thu\u1eadt t\u1ea1o ra, ph\u00e2n t\u00edch v\u00e0 gi\u1ea3i th\u00edch bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n, b\u1ea1n trang b\u1ecb cho b\u1ea3n th\u00e2n m\u1ed9t k\u1ef9 n\u0103ng qu\u00fd gi\u00e1 cho vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean d\u1eef li\u1ec7u. D\u00f9 b\u1ea1n l\u00e0 h\u1ecdc sinh, nh\u00e0 nghi\u00ean c\u1ee9u hay chuy\u00ean gia, bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 trong b\u1ed9 c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n, mang l\u1ea1i nh\u1eefng th\u00f4ng tin gi\u00fap th\u00fac \u0111\u1ea9y c\u00e1c quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u00e0 hi\u1ec3u s\u00e2u s\u1eafc h\u01a1n trong l\u0129nh v\u1ef1c b\u1ea1n theo \u0111u\u1ed5i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u Trong l\u0129nh v\u1ef1c ph\u00e2n t\u00edch v\u00e0 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u, bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 \u0111\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c bi\u1ebfn s\u1ed1. Trong tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 n\u00e0y, ch\u00fang t\u00f4i \u0111\u00e3 t\u1ea1o ra m\u1ed9t bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n \u0111\u1ec3 kh\u00e1m ph\u00e1 m\u1ed1i [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11012,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[42],"tags":[],"class_list":["post-11011","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-diagram","loop-entry","clr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>H\u01b0\u1edbng d\u1eabn v\u1ec1 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n: H\u01b0\u1edbng d\u1eabn nhanh - Visual Paradigm 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:\/\/blog.visual-paradigm.com\/vn\/20922-2\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u01b0\u1edbng d\u1eabn v\u1ec1 bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n: H\u01b0\u1edbng d\u1eabn nhanh - Visual Paradigm Blog\" \/>\n<meta property=\"og:description\" content=\"Gi\u1edbi thi\u1ec7u Trong l\u0129nh v\u1ef1c ph\u00e2n t\u00edch v\u00e0 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u, bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 \u0111\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c bi\u1ebfn s\u1ed1. 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