Question: X is nonmally distributed with mean 40 and vanance 16. Ylis normally distributed with mean 25 and variance 4X and Y are indenendent What is

X is nonmally distributed with mean 40 and vanance 16. Ylis normally distributed with mean 25 and variance 4X and Y are indenendent What is the Standard Deviation of (4X+6X) M 400 B. 310

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