Maths. Lois discrètes.

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Espérance (loi Bernoulli)

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E(X)=p

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Espérance (loi uniforme)

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E(X)=n+1/2

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12 Terms

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Espérance (loi Bernoulli)

E(X)=p

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Espérance (loi uniforme)

E(X)=n+1/2

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Variance (loi Bernoulli)

V(X)=p(1-p)

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Écart type (loi Bernoulli)

ó(X)=√p(1-p)

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Loi uniforme

{1, 2, …, 6}

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2 issues (p et q)

Épreuve de Bernoulli

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Espérance (loi binomiale)

E(X)=np

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Variance (loi binomiale)

V(X)=np(1-p)

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Écart type (loi binomiale)

ó(X)=√np(1-p)

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Loi géométrique

Au bout d'un succès, on s'arrête.

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Loi binomiale

On compte les succès.

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Espérance (loi géométrique)

E(X)=1/p