Question: Suppose two (2) fair dice are tossed together. Let's define a random variable X as the sum of the numbers that show on the two.

Suppose two (2) fair dice are tossed together. Let's define a random variable X as the sum of the numbers that show on the two. What is the cummulative distribution function (CDF) of this random variable? Sketch the CDF of this random variable. What are the expected value E(X) and the variance Var(X) of this random variable?

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