# Question

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

(a) X / 3

(b) 2X – 100

(c) X + 2

(d) X – X

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