
Lois de probabilités à densité
Authored by Jessica Letombe
Mathematics
12th Grade
Used 691+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X suit la loi uniforme sur [-1;4], alors P(X>2)=
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Si X suit la loi uniforme sur [-2;4], alors son espérance vaut :
1
0
3
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La fonction densité associée à la loi uniforme sur [1;9] est définie par :
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X suit la loi exponentielle de paramètre et que alors
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dans cette question, cochez les bonnes réponses.
Si X suit la loi exponentielle de paramètre 0.5, alors
l'espérance de X est égale à 2
l'espérance de X est égale à 0.25
la densité est définie par
la densité est définie par
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X suit une loi exponentielle, alors
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dans cette question, cochez les bonnes réponses.
La fonction est une densité de probabilité sur un intervalle [1; 10] si :
est continue sur [1; 10]
est croissante sur [1 ; 10]
est positive sur [1 ; 10]
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