RV: P(X=k)=1/2kP(X = k) = 1/2^kP(X=k)=1/2k for k=1,2,3,...k = 1,2,3,...k=1,2,3,.... What is P(X<=2)P(X <= 2)P(X<=2)?
1/4
3/4
1/2
7/8