Let the mean and the variance of 20 observations x_ 1 , x_ 2 , …., x_ 20 be 15 and 9, respectively. For R, if...

Question

Let the mean and the variance of 20 observations x_ 1 , x_ 2 , …., x_ 20 be 15 and 9, respectively. For R, if the mean of (x_ 1 + )^ 2 , (x_ 2 + )^ 2 , ….., (x_ 20 + )^ 2 is 178, then the square of the maximum value of is equal to _____.

Accepted Answer

4

JEE Main 2022 Mathematics question

Solution

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