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If the probability of success of a binom...

If the probability of success of a binomial distrubiton is `1/4` and the standard deviation is 3, then the value of its mean is

A

6

B

8

C

12

D

15

Text Solution

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Knowledge Check

  • If the probability of success of a binomial distribution is 1/4 and the standard deviation is 3, then the value of its mean is-

    A
    6
    B
    8
    C
    12
    D
    15

  • If n and p are two parameters of binomial distribution then its standard deviation is -

    A
    `np^(2)-np`
    B
    `np-np^(2)`
    C
    `sqrt(np-np^(2))`
    D
    none of these

  • The Standard Deviation of scores 1, 2, 3, 4, 5 is

    A
    `(2)/(5)`
    B
    `(3)/(5)`
    C
    `sqrt2`
    D
    `sqrt3`

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    The following statement cannot be true-why? "The mean of a binomial distritution is 4 and the standard deviation is 3."

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