On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \) échantillons.
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[[[15, 0.321884], [15, 0.325316]], {"stroke": "red"}], [[[14.3, 0.3236], [15.7, 0.3236]], {"stroke": "red"}], [[[16, 0.305784], [16, 0.309216]], {"stroke": "red"}], [[[15.3, 0.3075], [16.7, 0.3075]], {"stroke": "red"}], [[[17, 0.341484], [17, 0.344916]], {"stroke": "red"}], [[[16.3, 0.3432], [17.7, 0.3432]], {"stroke": "red"}], [[[18, 0.332984], [18, 0.336416]], {"stroke": "red"}], [[[17.3, 0.3347], [18.7, 0.3347]], {"stroke": "red"}], [[[19, 0.353284], [19, 0.356716]], {"stroke": "red"}], [[[18.3, 0.355], [19.7, 0.355]], {"stroke": "red"}], [[[20, 0.317684], [20, 0.321116]], {"stroke": "red"}], [[[19.3, 0.3194], [20.7, 0.3194]], {"stroke": "red"}], [[[21, 0.307684], [21, 0.311116]], {"stroke": "red"}], [[[20.3, 0.3094], [21.7, 0.3094]], {"stroke": "red"}], [[[22, 0.345284], [22, 0.34871599999999997]], {"stroke": "red"}], [[[21.3, 0.347], [22.7, 0.347]], {"stroke": "red"}], [[[23, 0.319984], [23, 0.323416]], {"stroke": "red"}], [[[22.3, 0.3217], [23.7, 0.3217]], {"stroke": "red"}], [[[24, 0.302884], [24, 0.306316]], {"stroke": "red"}], [[[23.3, 0.3046], [24.7, 0.3046]], {"stroke": "red"}], [[[25, 0.329484], [25, 0.332916]], {"stroke": "red"}], [[[24.3, 0.3312], [25.7, 0.3312]], {"stroke": "red"}], [[[26, 0.301184], [26, 0.304616]], {"stroke": "red"}], [[[25.3, 0.3029], [26.7, 0.3029]], {"stroke": "red"}], [[[27, 0.318784], [27, 0.322216]], {"stroke": "red"}], [[[26.3, 0.3205], [27.7, 0.3205]], {"stroke": "red"}], [[[28, 0.308984], [28, 0.31241599999999997]], {"stroke": "red"}], [[[27.3, 0.3107], [28.7, 0.3107]], {"stroke": "red"}], [[[29, 0.314284], [29, 0.317716]], {"stroke": "red"}], [[[28.3, 0.316], [29.7, 0.316]], {"stroke": "red"}], [[[30, 0.298284], [30, 0.301716]], {"stroke": "red"}], [[[29.3, 0.3], [30.7, 0.3]], {"stroke": "red"}], [[[31, 0.284084], [31, 0.287516]], {"stroke": "red"}], [[[30.3, 0.2858], [31.7, 0.2858]], {"stroke": "red"}], [[[32, 0.318584], [32, 0.32201599999999997]], {"stroke": "red"}], [[[31.3, 0.3203], [32.7, 0.3203]], {"stroke": "red"}], [[[33, 0.31558400000000003], [33, 0.319016]], {"stroke": "red"}], [[[32.3, 0.3173], [33.7, 0.3173]], {"stroke": "red"}], [[[34, 0.353284], [34, 0.356716]], {"stroke": "red"}], [[[33.3, 0.355], [34.7, 0.355]], {"stroke": "red"}], [[[35, 0.33978400000000003], [35, 0.343216]], {"stroke": "red"}], [[[34.3, 0.3415], [35.7, 0.3415]], {"stroke": "red"}], [[[36, 0.335984], [36, 0.339416]], {"stroke": "red"}], [[[35.3, 0.3377], [36.7, 0.3377]], {"stroke": "red"}], [[[37, 0.312784], [37, 0.316216]], {"stroke": "red"}], [[[36.3, 0.3145], [37.7, 0.3145]], {"stroke": "red"}], [[[38, 0.311684], [38, 0.315116]], {"stroke": "red"}], [[[37.3, 0.3134], [38.7, 0.3134]], {"stroke": "red"}], [[[39, 0.308884], [39, 0.312316]], {"stroke": "red"}], [[[38.3, 0.3106], [39.7, 0.3106]], {"stroke": "red"}], [[[40, 0.322884], [40, 0.326316]], {"stroke": "red"}], [[[39.3, 0.3246], [40.7, 0.3246]], {"stroke": "red"}], [[[41, 0.31408400000000003], [41, 0.317516]], {"stroke": "red"}], [[[40.3, 0.3158], [41.7, 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0.3202], [68.7, 0.3202]], {"stroke": "red"}], [[[69, 0.309384], [69, 0.312816]], {"stroke": "red"}], [[[68.3, 0.3111], [69.7, 0.3111]], {"stroke": "red"}], [[[70, 0.304384], [70, 0.307816]], {"stroke": "red"}], [[[69.3, 0.3061], [70.7, 0.3061]], {"stroke": "red"}], [[[71, 0.352284], [71, 0.355716]], {"stroke": "red"}], [[[70.3, 0.354], [71.7, 0.354]], {"stroke": "red"}], [[[72, 0.300184], [72, 0.303616]], {"stroke": "red"}], [[[71.3, 0.3019], [72.7, 0.3019]], {"stroke": "red"}], [[[73, 0.353284], [73, 0.356716]], {"stroke": "red"}], [[[72.3, 0.355], [73.7, 0.355]], {"stroke": "red"}], [[[74, 0.348784], [74, 0.352216]], {"stroke": "red"}], [[[73.3, 0.3505], [74.7, 0.3505]], {"stroke": "red"}], [[[75, 0.309284], [75, 0.312716]], {"stroke": "red"}], [[[74.3, 0.311], [75.7, 0.311]], {"stroke": "red"}], [[[76, 0.325984], [76, 0.329416]], {"stroke": "red"}], [[[75.3, 0.3277], [76.7, 0.3277]], {"stroke": "red"}], [[[77, 0.313784], [77, 0.317216]], {"stroke": "red"}], [[[76.3, 0.3155], [77.7, 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0.3531]], {"stroke": "red"}], [[[87, 0.333184], [87, 0.33661599999999997]], {"stroke": "red"}], [[[86.3, 0.3349], [87.7, 0.3349]], {"stroke": "red"}], [[[88, 0.322784], [88, 0.326216]], {"stroke": "red"}], [[[87.3, 0.3245], [88.7, 0.3245]], {"stroke": "red"}], [[[89, 0.328284], [89, 0.331716]], {"stroke": "red"}], [[[88.3, 0.33], [89.7, 0.33]], {"stroke": "red"}], [[[90, 0.309884], [90, 0.313316]], {"stroke": "red"}], [[[89.3, 0.3116], [90.7, 0.3116]], {"stroke": "red"}], [[[91, 0.283784], [91, 0.28721599999999997]], {"stroke": "red"}], [[[90.3, 0.2855], [91.7, 0.2855]], {"stroke": "red"}], [[[92, 0.319484], [92, 0.322916]], {"stroke": "red"}], [[[91.3, 0.3212], [92.7, 0.3212]], {"stroke": "red"}], [[[93, 0.344284], [93, 0.34771599999999997]], {"stroke": "red"}], [[[92.3, 0.346], [93.7, 0.346]], {"stroke": "red"}], [[[94, 0.335984], [94, 0.339416]], {"stroke": "red"}], [[[93.3, 0.3377], [94.7, 0.3377]], {"stroke": "red"}], [[[95, 0.292684], [95, 0.296116]], {"stroke": "red"}], [[[94.3, 0.2944], [95.7, 0.2944]], {"stroke": "red"}], [[[96, 0.347184], [96, 0.350616]], {"stroke": "red"}], [[[95.3, 0.3489], [96.7, 0.3489]], {"stroke": "red"}], [[[97, 0.29188400000000003], [97, 0.295316]], {"stroke": "red"}], [[[96.3, 0.2936], [97.7, 0.2936]], {"stroke": "red"}], [[[98, 0.304284], [98, 0.307716]], {"stroke": "red"}], [[[97.3, 0.306], [98.7, 0.306]], {"stroke": "red"}], [[[99, 0.322884], [99, 0.326316]], {"stroke": "red"}], [[[98.3, 0.3246], [99.7, 0.3246]], {"stroke": "red"}], [[[100, 0.332384], [100, 0.335816]], {"stroke": "red"}], [[[99.3, 0.3341], [100.7, 0.3341]], {"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.