Given that the random variable X has mean 120 and SD 15, find the mean and SD of each of these random variables that are defined from X (a) X 3 (b) 2X 100 (c) X 2 (d) X X

Question: Given that the random variable X has mean = 120 and SD = 15, find the mean and SD of each of these

Given that the random variable X has mean μ = 120 and SD σ = 15, find the mean and SD of each of these random variables that are defined from X:
(a) X / 3
(b) 2X – 100
(c) X + 2
(d) X – X

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