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Y is a normally distributed variable with mean 4.91 and variance 7.9. Consider a random sample of size 2, Y1 and Y2. Y1 and Y2
Y is a normally distributed variable with mean 4.91 and variance 7.9. Consider a random sample of size 2, Y1 and Y2. Y1 and Y2 are i.i.d. What is the variance of 4.4Y1 -7Y2? Round your answer to the closest third decimal
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