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A pair of dice is thrown 4 times. If get...

A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability of two successes.

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Knowledge Check

  • A dice is thrown 100 times . If getting an even number is considered a success , then the variance of the number of successes is

    A
    10
    B
    20
    C
    25
    D
    50

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