The random variable takes the value with probability
MATHEMATICS · Multi-part · AP · AP Statistics · Probability Random Variables Distributions · Probability Random Variables Distributions
Problem
The random variable X takes the value x with probability kx2, where k is a constant and x takes the values −2,1,2,3 only.
(1) Draw up the probability distribution table for X, giving the probabilities as numerical fractions.
(2) Find E(X).
(3) Find P(X=2∣X>0).