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Given that bar(x) is the mean and sigma^...

Given that `bar(x)` is the mean and `sigma^(2)` is the variance of n observation `x_(1), x_(2), …x_(n).` Prove that the mean and `sigma^(2)` is the variance of n observations `ax_(1),ax_(2), ax_(3),….ax_(n)` are `abar(x)` and `a^(2)sigma^(2)`, respectively, `(ane0)`.

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