X
P(X d" 3) P(X = 7)
X
X 7 - X
X n p
k k X
10 1 10
20 X
X X2
X 3
P(X " [3, 4])
[X] [x] x
X
g(x) = Cx-21[2,")(x).
C
P(X " [1, 12])
X Y = X2.
X
2X + 3
X 2 P(X = 3)
P(X d" 2)
X
Y = min(X, 3)
X [-5, 8] P(X = -1)
P(X d" 5)
X 5 P(X2 d" 2X + 5)
X
Cx-3 1 d" x d" 5,
g(x) = Cx-3 1[1,5](x) =
0 x.
1
C P " [1, 3]
X 2