Given that the standard deviation of x1, X2 and X3 is 2, what is the variance of 2x1 + 3, 2x2 + 3 and 2x3 + 3?

The variance of the original data is 4
The variance of the new data is the square of the variance of the original data multiplied by the coefficient of change of the new data
That is: the variance of the new data is 16

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