lizbethreyes7460 lizbethreyes7460 06-03-2024 Mathematics contestada Determine the mean and variance of the random variable in exercise 3.1.10.f(x) = (8/7)(1/2)ˣ, x = 1,2,3a. P(X ≤ 1)b. P(X > 1)c. P(2d. P(X≤1 or X > 1)