AP ICET 11 Sep 2020 Shift 2 Paper

Question : 145 of 200

Marks: +1, -0

Statistical Ability

If the variance of

x_1, x_2, ... , x_50

is 7, then the variance of

4x_1 + 5, 4x_2 + 5, ... , 4x_50 + 5 is

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