Suppose your statistics instructor gave six examinations during the semester. You received the following exam scores (percent correct): 95, 64, 82, 88, 92, and 73.

Required:

Compute the population mean. This is your average grade based on all of your grades. (Round your answer to 2 decimal places.)

Compute the population standard deviation. (Round your answer to 2 decimal places.)

How many difference scores could be calculated if your instructor decided to random sample two of your exam scores?

List all possible samples of size 2 and compute the mean of each. (Round your answers to 1 decimal place.)

d. List all possible samples of size 2 and compute the mean of each. (Round your answers 101 decimal place.)