(Answered) Consider a random variable x which takes on values 1 2 and

Statistics

Consider a random variable X which takes on values 1, 2, and 3 with probability 0.25, 0.5, and 0.25, respectively (i.e., P[x=1] = 0.25, P[x = 2] = 0.50, and P[x = 3] = 0.25). Determine the mean and variance of X. Plot the probability density function (pdf) and cumulative distribution function (CDF) of X.

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