VAR discrètes Flashcards

(19 cards)

1
Q

Th de transfert

A

E(u(x))=£u(xk)P(X=xk)

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2
Q

Inégalité markov

A

P(X>=L)= E(X)/L

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3
Q

Loi uniforme P(X=k)

A

1/n

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4
Q

Loi uniforme espérance

A

(n+1)/2

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5
Q

Loi uniforme variance

A

(n^2-1)/12

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6
Q

Loi de Bernoulli

A

P(X=1)=P

P(X=0)=q

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7
Q

Loi de bernoulli espérance

A

E(X)=p

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8
Q

Loi de bernoulli Variance

A

V(X)=pq

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9
Q

Loi binomiale

A

P(X=k)=(k parmi n) p^k q^n-k

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10
Q

Loi binomiale espérance

A

E(X)= np

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11
Q

Loi binomiale variance

A

V(X)= npq

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12
Q

Moi hypergéométrique

A

P(X=k)=[(k parmi Np)(n-k parmi Nq)]/(n parmi N)

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13
Q

Loi hypergéometrique espérance

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E(X)=np

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14
Q

Loi géométrique

A

P(X=n)=pq^n-1

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15
Q

Loi géométrique variance

A

V(X)=q/p^2

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16
Q

Loi géométrique espérance

17
Q

Loi de poisson

A

P(X=n)=exp(-L) L^n/n!

18
Q

Loi de poisson esperance

19
Q

Loi de poisson variance