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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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