Let XXX follow a geometric distribution P(X=k)=(0.5)kP(X=k) = (0.5)^kP(X=k)=(0.5)k for k=1,2,...k=1, 2, ...k=1,2,.... What is P(X is even)P(X \text{ is even})P(X is even)?
1/2
1/3
1/4
2/3