{"id":6833,"date":"2025-07-15T13:34:48","date_gmt":"2025-07-15T13:34:48","guid":{"rendered":"https:\/\/functiontranslator.com\/var-s\/"},"modified":"2021-02-26T08:16:00","modified_gmt":"2021-02-26T08:16:00","slug":"var-s","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/fr\/var-s\/","title":{"rendered":"VAR.S"},"content":{"rendered":"

La fonction VAR.S est utilis\u00e9e pour calculer la variance d\u2019un \u00e9chantillon de donn\u00e9es. La variance est une mesure qui indique la dispersion des valeurs dans un ensemble de donn\u00e9es. Ma\u00eetriser le calcul de la variance est crucial pour l\u2019analyse statistique dans divers domaines tels que la finance, la recherche scientifique et la m\u00e9trologie.<\/p>\n

Syntaxe de la fonction<\/h2>\n

La syntaxe pour utiliser cette fonction est l\u00e9g\u00e8rement diff\u00e9rente entre Excel et Google Sheets, mais elle est globalement similaire.<\/p>\n

Dans Excel, la syntaxe est :<\/p>\n

=VAR.S(nombre1, [nombre2], ...)<\/code><\/pre>\n
Dans Google Sheets, la syntaxe est la m\u00eame :<\/p>\n
=VAR.S(nombre1, [nombre2], ...)<\/code><\/pre>\n
Cette fonction n\u00e9cessite au moins un argument, ‘nombre1’, qui est obligatoire. Des arguments suppl\u00e9mentaires peuvent \u00eatre ajout\u00e9s au besoin. Chaque argument peut \u00eatre un nombre, un nom de plage ou une r\u00e9f\u00e9rence contenant des chiffres.<\/p>\n
Exemples d’utilisation<\/h2>\n
Consid\u00e9rons un cas o\u00f9 vous disposez des scores de 10 \u00e9tudiants et que vous souhaitez calculer la variance de ces scores pour \u00e9valuer leur dispersion. Les scores obtenus sont : 45, 55, 60, 60, 65, 65, 70, 75, 80, 85.<\/p>\n
La formule \u00e0 utiliser dans Excel ou Google Sheets serait :<\/p>\n
=VAR.S(45, 55, 60, 60, 65, 65, 70, 75, 80, 85)<\/code><\/pre>\n
Cette commande calcule la variance des scores des \u00e9tudiants.<\/p>\n
Sc\u00e9narios d’application pratique<\/h2>\n
    \n
  • Analyse de la stabilit\u00e9 financi\u00e8re :<\/b> Un \u00e9conomiste peut utiliser la VAR.S pour analyser la dispersion des retours sur investissements de diff\u00e9rents actifs afin d’\u00e9valuer leur risque.<\/li>\n
  • Recherche scientifique :<\/b> Un chercheur peut utiliser la VAR.S pour analyser la variance des r\u00e9sultats exp\u00e9rimentaux afin de d\u00e9terminer l\u2019homog\u00e9n\u00e9it\u00e9 ou la variabilit\u00e9 des donn\u00e9es collect\u00e9es au cours de diff\u00e9rentes exp\u00e9riences.<\/li>\n<\/ul>\n
    Solutions pas \u00e0 pas pour les sc\u00e9narios<\/h2>\n
    1. Analyse de la stabilit\u00e9 financi\u00e8re :<\/b> Supposons que vous analysiez les retours de six investissements diff\u00e9rents sur un an, avec les pourcentages suivants : 4%, 5%, 7%, 10%, 12%, 13%. Pour calculer la variance de ces retours, utilisez :<\/p>\n
    =VAR.S(4, 5, 7, 10, 12, 13)<\/code><\/pre>\n
    Cette formule vous aide \u00e0 comprendre le risque associ\u00e9 \u00e0 ces investissements en analysant la distribution de leurs rendements.<\/p>\n
    2. Recherche scientifique :<\/b> Imaginez qu\u2019un biologiste analyse la croissance de plantes sous cinq conditions diff\u00e9rentes avec les r\u00e9sultats suivants en cm : 2.1, 2.5, 2.5, 2.8, 3.0. Pour \u00e9tudier la variance, la formule appropri\u00e9e est :<\/p>\n
    =VAR.S(2.1, 2.5, 2.5, 2.8, 3.0)<\/code><\/pre>\n
    Cette analyse de la variance offre des insights sur la dispersion des r\u00e9sultats de croissance, permettant au biologiste de mieux comprendre l\u2019impact des diff\u00e9rentes conditions exp\u00e9rimentales.<\/p>\n","protected":false},"excerpt":{"rendered":"
    CalCule la varianCe sur la base d\u2019un \u00e9Chantillon<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[315],"tags":[],"class_list":["post-6833","post","type-post","status-publish","format-standard","hentry","category-statistiques"],"acf":[],"yoast_head":"\nFonction VAR.S dans Excel : comment \u00e7a marche, exemples et syntaxe<\/title>\n<meta name=\"description\" content=\"Pr\u00e9sentation de la fonction VAR.S d\u2019Excel et Google Sheets. 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