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Calculate mean, Variance and Standard De...

Calculate mean, Variance and Standard Deviation for the following distribution.

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`ˉ `= ∑F/∑Fx = 50/3100 =62`
`σ 2= ∑F/∑F(x− x)^2 = 50/10050`
​ `=201`
`σ=14.17`
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Knowledge Check

  • The mean deviation of the following distribution is

    A
    11.5
    B
    0.75
    C
    1.25
    D
    26

  • The mean deviation of the following distribution is

    A
    11,5
    B
    0.75
    C
    1.25
    D
    26

  • The standard deviation of the following frequency distribution

    A
    12.7
    B
    13.6
    C
    15.3
    D
    None of these
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