B. Directions: Find the mean and variance of the sampling distribution of the sample means. Do this on the answer sheet Consider a population consisting the scores of 5 students in a Statistics test 18, 22, 25, 28, 32 Suppose samples of size 3 are drawn from this population, find the mean and variance. Samples Means X PX) **P(X) (X-py? PX) (-) (18, 22, 25) (18, 22, 28) (18, 22, 32) (18, 25, 28) (18, 25, 32) (18, 26, 32) (22, 25, 28) (22, 25, 32) (22, 28, 32) (25, 28, 32) IX. P = ΣΡ(Χ) + (X - μ2 =
