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- Multiple ChoicePlease save your changes before editing any questions.
X suit la loi N(0; 1). p(X=1)=
0
1
0.5
0.25
- Multiple ChoicePlease save your changes before editing any questions.
X suit la loi N(0; 1). p(-0.2<X<0.5)≈
0.27
0.7
0.3
0
- Multiple ChoicePlease save your changes before editing any questions.
X suit la loi normale centrée réduite. p(X<0,8)≈
0,788
0.8
0.2
0.212
- Fill in the BlankPlease save your changes before editing any questions.
X suit la loi N(0,1). p(X>0.3)≈ (arrondir à 0,001 près)
- Multiple ChoicePlease save your changes before editing any questions.
X suit N(10,2²). p(8<X≤12)≈
0,68
0,38
0,4
1
- Fill in the BlankPlease save your changes before editing any questions.
X suit N(8,9). p(X>7)≈ (arrondir à 0,001 près)
- Multiple ChoicePlease save your changes before editing any questions.
X suit N(36,16). E(X)=
36
16
4
6
- Multiple ChoicePlease save your changes before editing any questions.
X suit N(36,16). σ(X)=
36
16
4
6
- Multiple ChoicePlease save your changes before editing any questions.
X suit N(20,3²); P(14<X<t)≈0,95 pour t=
20
23
26
29
- Multiple ChoicePlease save your changes before editing any questions.
X suit N(800,300²). p(X>700)≈
0,378
0,631
0,125
0,369
- Fill in the BlankPlease save your changes before editing any questions.
X suit une loi normale N(μ,σ²). p(X>μ+σ)≈
- Multiple ChoicePlease save your changes before editing any questions.
La loi binomiale B(64; 0,36) peut être approchée par la loi normale
N(64 ; 0,6²)
N(23,04 ; 3,84²)
N(64; 14,7456²)
N(23,04 ; 0,64²)