On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \) échantillons.
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{"stroke": "red"}], [[[97.3, 0.4478], [98.7, 0.4478]], {"stroke": "red"}], [[[99, 0.456336], [99, 0.45906399999999997]], {"stroke": "red"}], [[[98.3, 0.4577], [99.7, 0.4577]], {"stroke": "red"}], [[[100, 0.47633600000000004], [100, 0.479064]], {"stroke": "red"}], [[[99.3, 0.4777], [100.7, 0.4777]], {"stroke": "red"}]]}
Déduire de ce graphique une valeur approchée de la taille \( N \) des échantillons puis choisir
la valeur exacte la plus proche parmis les choix suivant.