Lois A Densite Flashcards

1
Q

Paramètres de loi densité

A

Continue et positive sur I

Intégrale sur I = 1

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2
Q

Probabilité d’un événement

A

P(a

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3
Q

Espérance mathématique d’une loi densité

A

E(x)= int a b x f(x) dx

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4
Q

Formule de la loi uniforme

A

f(x) = 1/(b-a)

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5
Q

Probabilité d’un événement de loi uniforme

A

P(a

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6
Q

Espérance de la loi uniforme

A

E(x) = (a+b) / 2

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7
Q

Formule de la loi exponentielle

A

f(x)= λ e^(-λx)

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8
Q

Espérance de la loi exponentielle

A

E(x) = 1/λ
Demi vie t1/2= ln2 / λ
E(x)= t1/2 / ln2

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9
Q

Probabilité de la loi exponentielle

A

P(x<a>b) = e^(-λb)</a>

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