a. Explain why the formula for sample variance is different from the formula for population variance. b. Calculate SS, variance, and standard deviation for the following sample of n = 8 scores: 0, 4,...

a. Explain why the formula for sample variance is different from the formula for population variance.

b. Calculate SS, variance, and standard deviation for the following sample of n = 8 scores: 0, 4, 1, 3, 2, 1, 1, 0.