Given independent random variables with means and standard deviations as shown, find the mean and standard...

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Given independent random variables with means and standard deviations as shown, find the mean and standard deviation of each of these variables a) 5X d) 4X-2Y Mean 100 20 SD 13 4 b) 4Y+5 c)5X+4Y a) Find the mean and standard deviation for the random variable 5X.

math Statistics-And-Probability

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Answer 1

Answer #1

Given mean μ,-100 and standard deviation σ,-13 a) Mean E(5X) -5*E(X) Hx =5*100 ร์00 Standard deviation SD(5X) 5 =5*13

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Answer 2

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