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  1. For a random variable x following the probability density function, p(x), shown in figure, the mean and the variance are respectively,

    2. A.
    1/2 and 2/3
    B.
    1 and 4/3
    C.
    1 and 2/3
    D.
    2 and 4/3

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    Answer : Option B

    Explanation :

    The mean x is given by

    and the variance is

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