chap. 6 : Loi Binomiale Flashcards

1
Q

permutation (définition)

A

disposition ordonnée de tous les éléments de l’ensemble

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2
Q

permutation (formule)

A

n!

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3
Q

arrangement (définition)

A

disposition ordonnée de certains éléments de l’ensemble

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4
Q

arrangement (formule)

A

n!/(n−k)!

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5
Q

combinaison (définition)

A

disposition non ordonnée de certains éléments de l’ensemble

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6
Q

combinaison (formule)

A

n!/(k!(n-k)!)

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7
Q

Epreuve de Bernoulli

A

expérience aléatoire n’admettant que deux issues : succès ou échec

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8
Q

P(S)

A

p

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9
Q

P(S barre)

A

1-p

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10
Q

une variable aléatoire est une variable al. de Bernoulli quand …

A

elle prend deux valeurs : 0 ou 1

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11
Q

P(X=1)

A

= p

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12
Q

P(X=0)

A

= 1-p

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13
Q

un schéma de Bernoulli est …

A

la répétition de n-épreuves de Bernoulli indépendantes et indentiques

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14
Q

schéma de bernoulli

A

répétition de n épreuves de bernoulli indentiques et indépendantes

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15
Q

espérance mathématique de X :

A

E(X) = np

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16
Q

Variance mathématique de X :

A

V(X) = np(1-p)