Watching TV. Choose a young person (age 19 to 25) at random and ask, In thepast seven

Chapter 0, Problem 10.12

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Watching TV. Choose a young person (age 19 to 25) at random and ask, In thepast seven days, how many days did you watch television? Call the response X forshort. Here is a probability model for the response:3Days X 01234567Probability 0.04 0.03 0.06 0.08 0.09 0.08 0.05 0.57(a) Verify that this is a legitimate discrete probability model.(b) Describe the event X < 7 in words. What is P(X < 7)?(c) Express the event watched TV at least once in terms of X. What is theprobability of this event?

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