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6 September, 02:27

There are 4 truck in the fleet of 10 cars. 2 cars were randomly selected. Make a series of distribution of a discrete random variable X - the number of trucks among the selected.

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  1. 6 September, 06:19
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    X = 0, P (0) = 1/3

    X = 1, P (1) = 8/15

    X = 2, P (2) = 2/15

    Step-by-step explanation:

    Let X be the no. of trucks

    X = 0, P (0) = 6/10 * 5/9 = 1/3

    X = 1, P (1) = 2 (6/10 * 4/9) = 8/15

    X = 2, P (2) = 4/10 * 3/9 = 2/15
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