3. Suppose that you have a population of three individuals and the number of times that they exercise per week is shown in the table below. Individual A B C Mean Standard deviation Exercise Times per Week 2 0 7 3 3.60555128 a. Write out all combinations of two individuals from the three (including drawing the same person twice) and show the mean of each pair. b. Calculate the standard error of the mean using the information from Part "a," using N-1 in the denominator of the formula for the variance. c. Generate the standard error of the mean using the formula rather than the information in your table. 11