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The _______ and ________ of a discrete random variable is easy to compute at the console.

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The _______ and ________ of a discrete random variable is easy to compute at the console.

(a) Mean, Variance

(b) Variance, Packages

(c) Packages, Functions

(d) Median, Mode
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The correct choice is (a) Mean, Variance

The best explanation: The mean and variance of a discrete random variable are easy to compute at the console. To calculate the mean µ, we need to multiply the corresponding values of x and f and add them.
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