Question

12 10) Compute the mean, variance, and standard deviation for the probability distribution listed below. 4 1 P(X) 1/3 1/8 1/8 1/4 1/6

Answer 1

Summary of Answer: We are given the complete description of the probability distribution of the random variable X. So we need to recall the formula for computing mean of a discrete random variable and variance of the same. Both these formulas are given in the following answer image. Once you plug in appropriate values, you get the required answer.