In the law firm Tybo and Associates, there are six partners. Listed next is the number of cases each associate actually tried in court last month.

Associate Number of Cases Ruud 3 Wu 6 Sass 3 Flores 3 Wilhelms 0 Schueller 1

a. How many different samples of 3 are possible? b. List all possible samples of size 3, and compute the mean number of cases in each sample. c. Compare the mean of the distribution of sample means to the population mean. d. On a chart similar to Chart 8-1, compare the dispersion in the population with that of the sample means.