x y.
A x < 0, 5 x < y + 0, 5
C y d" x2.
{-1, 1, 0, 2} x y
X = |x - y| X
X < -a, a >,
a > 0 a
(X, Y )
X Y
X Y
P (X2 > Y )
(Xn) P (Xn =
1 1
-n) = P (Xn = n) = P (Xn = 0) = 1 -
2n2 n2
(Nt : t e" 0)  = 1
P (Nt = 1, N3t = 2, N4t = 5)
2e-2x dla x > 0
f(x) =
0 w p.p.
X.
X
P (X > t + s|X > t) = P (X > s) s, t > 0
X
(X, Y )
(-1, 0), (0, 1),(1, 0)
(X, Y )
X Y
X Y
ORO
(Xn :
n e" 0) {", O, OR, ORO}
ORO