{"id":262916,"date":"2025-02-07T06:30:00","date_gmt":"2025-02-07T06:30:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=262916"},"modified":"2025-01-31T21:59:50","modified_gmt":"2025-01-31T21:59:50","slug":"test-de-fisher-tout-savoir","status":"publish","type":"post","link":"https:\/\/datascientest.com\/test-de-fisher-tout-savoir","title":{"rendered":"Test de Fisher : d\u00e9finition, principe et cas pratiques pour mieux l\u2019appliquer"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"262916\" class=\"elementor elementor-262916\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d32beef e-flex e-con-boxed e-con\" data-id=\"d32beef\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6ee29cd elementor-widget elementor-widget-text-editor\" data-id=\"6ee29cd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><strong>Le test exact de Fisher est une m\u00e9thode statistique appropri\u00e9e \u00e0 l\u2019analyse des relations entre deux variables binaires dans de petits \u00e9chantillons.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de12388 elementor-widget elementor-widget-text-editor\" data-id=\"de12388\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Il existe de nombreuses situations o\u00f9 nous pouvons souhaiter rep\u00e9rer s&rsquo;il existe une <strong>relation entre deux variables binaires<\/strong>.<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; text-align: var(--text-align);\">Imaginons par exemple un tableau avec deux colonnes. Dans la premi\u00e8re, nous aurions la mention Homme ou Femme, et dans la deuxi\u00e8me une variable exprimant la propri\u00e9t\u00e9 d\u2019un animal avec deux valeurs possibles : oui ou non. Une telle matrice est appel\u00e9e <\/span><strong style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; text-align: var(--text-align);\">un tableau de contingence<\/strong><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; text-align: var(--text-align);\">.<\/span><\/p><p><span style=\"font-weight: 400;\">Un tableau de contingence affiche dans ses cellules les fr\u00e9quences ou proportions de combinaisons de <strong>deux variables cat\u00e9goriques<\/strong>.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b380ea5 elementor-widget elementor-widget-image\" data-id=\"b380ea5\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1000\" height=\"571\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-1.webp\" class=\"attachment-full size-full wp-image-262928\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-1.webp 1000w, https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-1-300x171.webp 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-1-768x439.webp 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ad9e45 elementor-widget elementor-widget-text-editor\" data-id=\"4ad9e45\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Pour \u00e9valuer les statistiques li\u00e9es \u00e0 un tel tableau, et donc d\u00e9terminer si des <strong>associations significatives<\/strong> existent entre les deux cat\u00e9gories, on utilise un outil math\u00e9matique : le test de Fisher.<\/span><\/p><p><span style=\"font-weight: 400;\">En d\u2019autres termes, le test de Fisher sert \u00e0 <strong>\u00e9valuer l&rsquo;association entre deux variables binaires dans un tableau de contingence<\/strong>. Dans l\u2019exemple ci-dessus, il pourrait par exemple faire ressortir que davantage de femmes ont un animal.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7648299 e-flex e-con-boxed e-con\" data-id=\"7648299\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7984f28 elementor-widget elementor-widget-heading\" data-id=\"7984f28\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h3 class=\"elementor-heading-title elementor-size-default\">Cr\u00e9ation du test de Fisher<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa820e1 elementor-widget elementor-widget-text-editor\" data-id=\"aa820e1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Le test exact de Fisher a \u00e9t\u00e9 d\u00e9velopp\u00e9 dans les ann\u00e9es 1920 par le britannique Ronald A. Fisher, un pionnier des statistiques. Il a \u00e9t\u00e9 con\u00e7u pour analyser les donn\u00e9es de petits \u00e9chantillons, en particulier dans le cadre des \u00e9tudes en biologie.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7529926 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"7529926\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Apprendre \u00e0 utiliser le test de Fisher<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1f5f70d e-flex e-con-boxed e-con\" data-id=\"1f5f70d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da9a199 elementor-widget elementor-widget-heading\" data-id=\"da9a199\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quand utiliser le test de Fisher ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84ba78a elementor-widget elementor-widget-text-editor\" data-id=\"84ba78a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Bien qu\u2019il puisse \u00eatre th\u00e9oriquement valide sur de plus grands \u00e9chantillons, le test de Fisher est g\u00e9n\u00e9ralement r\u00e9serv\u00e9 aux petits \u00e9chantillons (par exemple une dizaine de personnes). Avec les caract\u00e9ristiques suivantes :<\/span><\/p><ul><li><span style=\"font-weight: 400;\">Les deux variables doivent \u00eatre <strong>cat\u00e9goriques et binaires<\/strong> : elles peuvent prendre l&rsquo;une de deux valeurs d\u2019un tableau de contingence 2 x 2.<\/span><\/li><li><span style=\"font-weight: 400;\">Les donn\u00e9es sont <strong>s\u00e9lectionn\u00e9es al\u00e9atoirement<\/strong> \u00e0 partir d&rsquo;\u00e9chantillons ind\u00e9pendants.<\/span><\/li><li><span style=\"font-weight: 400;\">Une ou plusieurs cellules du tableau de contingence doivent contenir des <strong>valeurs faibles<\/strong> (inf\u00e9rieures \u00e0 5).<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a01eea elementor-widget elementor-widget-text-editor\" data-id=\"7a01eea\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Pour des \u00e9chantillons plus grands ou appari\u00e9s, des outils comme le Chi-carr\u00e9, le test Z ou le test de McNemar seraient plus appropri\u00e9s.<\/span><\/p><p><span style=\"font-weight: 400;\">Les hypoth\u00e8ses du test exact de Fisher sont les suivantes :<\/span><\/p><ol><li><strong>Hypoth\u00e8se nulle (H0)<\/strong> <span style=\"font-weight: 400;\">: il n&rsquo;y a aucune association entre les deux variables.<\/span><\/li><li><strong>Hypoth\u00e8se alternative (H1)<\/strong><span style=\"font-weight: 400;\"> : il existe une association entre les deux variables.<\/span><\/li><\/ol>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c7b901 elementor-widget elementor-widget-image\" data-id=\"2c7b901\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1000\" height=\"571\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-2.webp\" class=\"attachment-full size-full wp-image-262929\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-2.webp 1000w, https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-2-300x171.webp 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest-2-768x439.webp 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ba20e00 e-flex e-con-boxed e-con\" data-id=\"ba20e00\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3040fe4 elementor-widget elementor-widget-heading\" data-id=\"3040fe4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quelques usages pratiques du test de Fisher<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5faabbe elementor-widget elementor-widget-text-editor\" data-id=\"5faabbe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h4><font size=\"4\"><b>M\u00e9decine<\/b><\/font><\/h4>\n<span style=\"font-weight: 400;\">Le test de Fisher va aider \u00e0 d\u00e9terminer si un traitement particulier a un effet notable sur un \u00e9chantillon r\u00e9duit de patients.<\/span>\n<h4><font size=\"4\"><b>Biologie<\/b><\/font><\/h4>\n<span style=\"font-weight: 400;\">Il peut aider \u00e0 v\u00e9rifier si une esp\u00e8ce v\u00e9g\u00e9tale est mieux adapt\u00e9e \u00e0 un type de sol.<\/span>\n<h4><font size=\"4\"><b>G\u00e9n\u00e9tique<\/b><\/font><\/h4>\n<span style=\"font-weight: 400;\">Le test pourrait v\u00e9rifier si la pr\u00e9sence d\u2019un g\u00e8ne sp\u00e9cifique est associ\u00e9e \u00e0 l\u2019apparition de t\u00e2ches de rousseur.<\/span>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7c54377 e-flex e-con-boxed e-con\" data-id=\"7c54377\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c9881ce elementor-widget elementor-widget-text-editor\" data-id=\"c9881ce\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En r\u00e9sum\u00e9, le test exact de Fisher sera bien utile pour <strong>analyser les associations<\/strong> dans des contextes o\u00f9 les donn\u00e9es sont rares ou les \u00e9chantillons restreints.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7afe637 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"7afe637\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Ma\u00eetriser le test de Fisher en Data Science<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-46fb22d e-flex e-con-boxed e-con\" data-id=\"46fb22d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0e75e51 elementor-widget elementor-widget-html\" data-id=\"0e75e51\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Qu'est-ce que le test de Fisher ?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Le test de Fisher, ou test exact de Fisher, est une m\u00e9thode statistique utilis\u00e9e pour v\u00e9rifier l'ind\u00e9pendance entre deux variables cat\u00e9goriques dans un tableau de contingence. Il est particuli\u00e8rement utile pour les petits \u00e9chantillons.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Quand utiliser le test de Fisher ?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Le test de Fisher est utilis\u00e9 lorsque vous analysez la relation entre deux variables cat\u00e9goriques dans des tableaux de contingence 2x2, surtout si les effectifs sont faibles ou si certaines cases contiennent des valeurs inf\u00e9rieures \u00e0 5.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Quelle est la diff\u00e9rence entre le test de Fisher et le test du Chi-carr\u00e9 ?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Le test de Fisher est exact et adapt\u00e9 aux petits \u00e9chantillons, tandis que le test du Chi-carr\u00e9 est une approximation qui convient mieux aux grands \u00e9chantillons. Si les effectifs sont faibles, le test de Fisher est pr\u00e9f\u00e9rable.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Quels sont les pr\u00e9requis pour appliquer le test de Fisher ?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Les pr\u00e9requis pour le test de Fisher incluent des donn\u00e9es cat\u00e9goriques organis\u00e9es dans un tableau de contingence 2x2. Les effectifs peuvent \u00eatre petits, ce qui en fait un test adapt\u00e9 aux \u00e9chantillons r\u00e9duits.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Comment interpr\u00e9ter les r\u00e9sultats du test de Fisher ?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Si la p-valeur du test est inf\u00e9rieure au seuil de signification (par exemple, 0,05), vous rejetez l'hypoth\u00e8se nulle, indiquant une d\u00e9pendance significative entre les deux variables. Une p-valeur sup\u00e9rieure sugg\u00e8re que les variables sont ind\u00e9pendantes.\"\r\n      }\r\n    }\r\n  ]\r\n}\r\n<\/script>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le test exact de Fisher est une m\u00e9thode statistique appropri\u00e9e \u00e0 l\u2019analyse des relations entre deux variables binaires dans de petits \u00e9chantillons. Il existe de nombreuses situations o\u00f9 nous pouvons souhaiter rep\u00e9rer s&rsquo;il existe une relation entre deux variables binaires.Imaginons par exemple un tableau avec deux colonnes. Dans la premi\u00e8re, nous aurions la mention Homme [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":262918,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Test de Fisher : d\u00e9finition, principe et cas pratiques pour mieux l\u2019appliquer<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez le Test de Fisher : sa d\u00e9finition, son principe statistique et des cas pratiques concrets pour comprendre quand et comment l&#039;utiliser efficacement.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/test-de-fisher-tout-savoir\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Test de Fisher : d\u00e9finition, principe et cas pratiques pour mieux l\u2019appliquer\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/test-de-fisher-tout-savoir\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2025-02-07T06:30:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-31T21:59:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2025\/01\/fisher-test-datascientest.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Raphael Kassel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Raphael Kassel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/test-de-fisher-tout-savoir\",\"url\":\"https:\/\/datascientest.com\/test-de-fisher-tout-savoir\",\"name\":\"Test de Fisher : d\u00e9finition, principe et cas pratiques pour mieux l\u2019appliquer\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2025-02-07T06:30:00+00:00\",\"dateModified\":\"2025-01-31T21:59:50+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1\"},\"description\":\"D\u00e9couvrez le Test de Fisher : sa d\u00e9finition, son principe statistique et des cas pratiques concrets pour comprendre quand et comment l'utiliser efficacement.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/test-de-fisher-tout-savoir\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/#website\",\"url\":\"https:\/\/datascientest.com\/\",\"name\":\"Formation Data Science | DataScientest.com\",\"description\":\"Leader de la formation en Data Science\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1\",\"name\":\"Raphael Kassel\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg\",\"contentUrl\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg\",\"caption\":\"Raphael Kassel\"},\"description\":\"Raphael Kassel est le Head of Data Programs chez DataScientest. 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