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Watching TV (6.1, 7.3) Choose a young person (aged 19 to 25) at random and ask, In the past seven days, how many days did you watch television? Call the response X for short. Here is the probability distribution for X: 31 Days: 0 1 2 3 4 5 6 7 Probability: 0.04 0.03 0.06 0.08 0.09 0.08 0.05 ??? (a) W

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