Question: 2. Suppose that the probability distribution of a random variable X is as shown below. Determine the mean and variance of the random variable Y

2. Suppose that the probability distribution of a random variable X is as shown below.

Determine the mean and variance of the random variable Y = 3X.

X = x 1 2 3 4 5 6 7 8 p(x) 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125

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