Q. 54.3( 26 Votes )

# Find the mean and variance for each of the data in Exercise.

Answer :

Presenting the data in the tabular form, we get

We know that Mean,

Where N =

∴

We know that Variance, σ^{2} =

∴ σ^{2} = (1/22) × 640 =

Ans. Mean = 100 and Variance =

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