Let the mean and variance of four numbers 3,7,x... | Statistics | JEE Main

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JEE MAIN 2021

26-08-2021 S2

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Let the mean and variance of four numbers $3,7, x$ and $y(x>y)$ be 5 and 10 respectively. Then the mean of four numbers $3+2 x, 7+2 y, x+y$ and $x-y$ is $\_\_\_\_$ .

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