A study examined waiting times in the X-ray department for a hospital in Jacksonville, Florida. A clerk recorded the number of patients waiting for service at 9:00 a.m. on 20 consecutive days and obtained the following results.

                 Number Waiting                  # of Days Outcome Occured

                           0                                             2

                            1                                             5

                             2                                             6

                            3                                              4

                            4                                              3

                                                    Total             20

a. Define the experiment the clerk conducted.

b. List the experimental outcomes.

c. Assign probabilities to the experimental outcomes.

d. What method did you use?