The expected value of x to decide which method will reach more people if for TV Commercials and Personal Appearances, x represents the number of people reached by TV Commercials and Personal Appearances and Pr ( x ) represents the probability. TV Commercials Personal Appearances x Pr ( x ) x Pr ( x ) 100,000 0.01 80,000 0.02 50,000 0.47 50,000 0.47 25,000 0.52 20,000 0.51

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Chapter 8.3, Problem 35E

To determine

To calculate: The expected value of x to decide which method will reach more people if for TV Commercials and Personal Appearances, x represents the number of people reached by TV Commercials and Personal Appearances and Pr(x) represents the probability.

TV Commercials Personal Appearances

x Pr(x) x Pr(x)

100,000 0.01 80,000 0.02

50,000 0.47 50,000 0.47

25,000 0.52 20,000 0.51

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