On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \)
échantillons.
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{"subtype": "segment", "stroke": "red"}]]}
Déduire de ce graphique une valeur approchée de la taille \( N \) des échantillons puis choisir
la valeur exacte la plus proche parmi les choix suivants.