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DidhighgaspriceskeepAmericansfromhittingthe roadthispastsummer?.Inanationwidesurvey of adults, one variable measured was how many days vacationers spent driving on the road on their longest trip.Consider the following ( partial

DidhighgaspriceskeepAmericansfromhittingthe roadthispastsummer?.Inanationwidesurvey of adults, one variable measured was how many days vacationers spent driving on the road on their longest trip.Consider the following (partial) probability distribution for the random variable X= the number of days for the longest car trip.

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X 4 5 6 7 8 Probability 0.10 0.20 0.25

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