The following is a set of data from a sample of n = 5 3 -7 -8 3 5 3 a. Compute the mean, median, and mode. b. Compute the range, variance, standard deviation, and coefficient of variation. c. Compute the Z scores, Are there any outliers? d. Describe the shape of the data set. a. The mean is (Type an integer or a decimal, Do not round.)