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exercice 45:

1.a. P(T<10)
=(10-0)/(15-0)
= 0.67

b. P(T<0.30)
=0.50/15
=0.03

2. E(T)= 15/2
= 7.5

exercice 46:

1.a. A={X<0.4}
= (0.4-0)/(1-0)
= 0.4

b. B={0.02<X<0.099}
= 0.079/1
= 0.079

c. C={X=0.45} = 0

d. D={X>0.08}
=0.92/1
=0.92

e. E={$\frac{1}{7} <X< \frac{5}{7}$}
= $\frac{4}{7}$

f. F={X<$\frac{\sqrt{2}}{2}$}
=0.71

2. P(X>k)=0.72
p(X<k)=1-0.72

donc k=-0.58 (FracNormale(1-0.72))

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