Q. 14.0( 36 Votes )

Find the mean and

Answer :

We know that Mean,


Where n = number of observations and = Sum of total observations



From the given data, we can form the table:



We know that Variance, σ2 =


σ2 = (1/8) × 74 = 9.25


Ans. Mean = 9 and Variance = 9.25


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