X
fX(x) = (0x < 1
2
x3x1
fX
X FX
αP(Xα) = 1
4α
R+
αxfX(x)dx
R+
αxfX(x)dx
R+
1xfX(x)dx
5000
X t
X
X
2,5%
1 / 1 100%