(a) use the frequency distribution table to construct a probability distribution, (b) graph the probability distribution using a histogram and describe its shape, (c) find the mean, variance, and standard deviation of the probability distribution, and (d) interpret the results in the context of the real-life situation. 11. The number of pages in a section 12. The number of hits per game played from 10 statistics texts by a baseball player during a recent season Pages Sections Hits Games 2 3 29 3 12 62 72 33 115 12 169 - w 120 48 10 22 11 13. The distribution of the number of 14. A television station sells advertising cellular phones per household in in 15-, 30-, 60-, 90-, and 120-second a small town is given. blocks. The distribution of sales for one 24-hour day is given. Cellphones Families Length (in seconds) Number 15 76 35 30 445 68 60 30 awN 73 90 3 42 120 12 19 In Exercises 15 and 16, find the expected value of the random variable. 15. A person has shares of eight different stocks. The random variable x represents the number of stocks showing a loss on a selected day. 8 P(x) 0.02 0.11 0.18 0.32 0.15 0.09 0.05 0.05 0.03 16. A local pub has a chicken wing special on Tuesdays. The pub owners purchase wings in cases of 300. The random variable x represents the number of cases used during the special. P(x)