ishe JALTY ALTERNATE EXAMPLE (page 385) Selling cars owollot vleasb Effect of multiplying/dividing by a constant i fedW X PROBLEM: pepe Employees selling refrigerators at an appliance store make money on commission based on how many refrigerators they sell. The number of refrigerators R sold in a randomly selected hour has the following probability distribution: Number of 0 1 2 3 4 5 refrigerators 0.22 0.31 0.12 0.25 0.08 0.02 Probability Here is a histogram of the probability distribution along with the mean and standard deviation. ess the event "mows at most on rene) 9MAYSTAKATIA 0.30 0.25 0.20 0.15 0.10- 0.05 0.00 -1 0 12 3 5 R = Number of refrigerators sold HR=1.72 OR= 1.36 At this appliance store, the commission earned is $30 for each refrigerator sold. That is, if C = total commission earned for a randomly selected hour, C = 30R. %3D (a) What shape does the probability distribution of C have? (b) Find the mean of C. (c) Calculate the standard deviation of C.

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