Question: 5.1 A random variable X that assumes the values x1, x2 , . . . , xk is called a discrete uniform random variable if

5.1 A random variable X that assumes the values x1, x2 , . . . , xk is called a discrete uniform random variable if its probability mass function is f(x) = 1 k for all of x1, x2 , . . . , xk and 0 otherwise. Find the mean and variance of X.

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