Échantillonnage - 2de
L’intervalle de fluctuation avec la loi binomiale
Exercice 1 : Échantillonnage et intervalle de fluctuation
On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \) échantillons.
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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.
Exercice 2 : Échantillonnage et intervalle de fluctuation
On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \) échantillons.
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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.
Exercice 3 : Échantillonnage et intervalle de fluctuation
On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \) échantillons.
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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.
Exercice 4 : Échantillonnage et intervalle de fluctuation
On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \) échantillons.
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{"stroke": "red"}], [[[93, 0.31344], [93, 0.31695999999999996]], {"stroke": "red"}], [[[92.3, 0.3152], [93.7, 0.3152]], {"stroke": "red"}], [[[94, 0.36624], [94, 0.36976]], {"stroke": "red"}], [[[93.3, 0.368], [94.7, 0.368]], {"stroke": "red"}], [[[95, 0.31194], [95, 0.31545999999999996]], {"stroke": "red"}], [[[94.3, 0.3137], [95.7, 0.3137]], {"stroke": "red"}], [[[96, 0.32234], [96, 0.32586]], {"stroke": "red"}], [[[95.3, 0.3241], [96.7, 0.3241]], {"stroke": "red"}], [[[97, 0.29824], [97, 0.30176]], {"stroke": "red"}], [[[96.3, 0.3], [97.7, 0.3]], {"stroke": "red"}], [[[98, 0.39724000000000004], [98, 0.40076]], {"stroke": "red"}], [[[97.3, 0.399], [98.7, 0.399]], {"stroke": "red"}], [[[99, 0.36224], [99, 0.36576]], {"stroke": "red"}], [[[98.3, 0.364], [99.7, 0.364]], {"stroke": "red"}], [[[100, 0.38154], [100, 0.38505999999999996]], {"stroke": "red"}], [[[99.3, 0.3833], [100.7, 0.3833]], {"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.
Exercice 5 : Échantillonnage et intervalle de fluctuation
On étudie la fréquence d’un événement grâce au graphique ci-dessous représentant \( 100 \) échantillons.
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{"stroke": "red"}], [[[22.3, 0.656], [23.7, 0.656]], {"stroke": "red"}], [[[24, 0.6414920000000001], [24, 0.644308]], {"stroke": "red"}], [[[23.3, 0.6429], [24.7, 0.6429]], {"stroke": "red"}], [[[25, 0.665192], [25, 0.6680079999999999]], {"stroke": "red"}], [[[24.3, 0.6666], [25.7, 0.6666]], {"stroke": "red"}], [[[26, 0.628592], [26, 0.631408]], {"stroke": "red"}], [[[25.3, 0.63], [26.7, 0.63]], {"stroke": "red"}], [[[27, 0.663892], [27, 0.666708]], {"stroke": "red"}], [[[26.3, 0.6653], [27.7, 0.6653]], {"stroke": "red"}], [[[28, 0.629092], [28, 0.6319079999999999]], {"stroke": "red"}], [[[27.3, 0.6305], [28.7, 0.6305]], {"stroke": "red"}], [[[29, 0.667792], [29, 0.670608]], {"stroke": "red"}], [[[28.3, 0.6692], [29.7, 0.6692]], {"stroke": "red"}], [[[30, 0.656692], [30, 0.659508]], {"stroke": "red"}], [[[29.3, 0.6581], [30.7, 0.6581]], {"stroke": "red"}], [[[31, 0.670292], [31, 0.6731079999999999]], {"stroke": "red"}], [[[30.3, 0.6717], [31.7, 0.6717]], {"stroke": "red"}], [[[32, 0.660792], [32, 0.663608]], {"stroke": "red"}], [[[31.3, 0.6622], [32.7, 0.6622]], {"stroke": "red"}], [[[33, 0.637992], [33, 0.6408079999999999]], {"stroke": "red"}], [[[32.3, 0.6394], [33.7, 0.6394]], {"stroke": "red"}], [[[34, 0.645192], [34, 0.6480079999999999]], {"stroke": "red"}], [[[33.3, 0.6466], [34.7, 0.6466]], {"stroke": "red"}], [[[35, 0.628592], [35, 0.631408]], {"stroke": "red"}], [[[34.3, 0.63], [35.7, 0.63]], {"stroke": "red"}], [[[36, 0.6523920000000001], [36, 0.655208]], {"stroke": "red"}], [[[35.3, 0.6538], [36.7, 0.6538]], {"stroke": "red"}], [[[37, 0.646092], [37, 0.6489079999999999]], {"stroke": "red"}], [[[36.3, 0.6475], [37.7, 0.6475]], {"stroke": "red"}], [[[38, 0.647792], [38, 0.650608]], {"stroke": "red"}], [[[37.3, 0.6492], [38.7, 0.6492]], {"stroke": "red"}], [[[39, 0.670792], [39, 0.673608]], {"stroke": "red"}], [[[38.3, 0.6722], [39.7, 0.6722]], {"stroke": "red"}], [[[40, 0.656792], [40, 0.659608]], {"stroke": "red"}], [[[39.3, 0.6582], [40.7, 0.6582]], 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"red"}], [[[75, 0.631792], [75, 0.634608]], {"stroke": "red"}], [[[74.3, 0.6332], [75.7, 0.6332]], {"stroke": "red"}], [[[76, 0.644692], [76, 0.647508]], {"stroke": "red"}], [[[75.3, 0.6461], [76.7, 0.6461]], {"stroke": "red"}], [[[77, 0.6515920000000001], [77, 0.654408]], {"stroke": "red"}], [[[76.3, 0.653], [77.7, 0.653]], {"stroke": "red"}], [[[78, 0.6615920000000001], [78, 0.664408]], {"stroke": "red"}], [[[77.3, 0.663], [78.7, 0.663]], {"stroke": "red"}], [[[79, 0.645692], [79, 0.648508]], {"stroke": "red"}], [[[78.3, 0.6471], [79.7, 0.6471]], {"stroke": "red"}], [[[80, 0.6806920000000001], [80, 0.683508]], {"stroke": "red"}], [[[79.3, 0.6821], [80.7, 0.6821]], {"stroke": "red"}], [[[81, 0.651792], [81, 0.654608]], {"stroke": "red"}], [[[80.3, 0.6532], [81.7, 0.6532]], {"stroke": "red"}], [[[82, 0.663392], [82, 0.6662079999999999]], {"stroke": "red"}], [[[81.3, 0.6648], [82.7, 0.6648]], {"stroke": "red"}], [[[83, 0.667092], [83, 0.669908]], {"stroke": "red"}], [[[82.3, 0.6685], 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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.