Expectation and variance of a discrete random variable
 

Expectation and variance of a discrete random variable problem 9


A red fair six-sided dice has faces labelled 1, 1, 1, 2, 2, 2. A blue fair six-sided dice has faces labelled 1, 1, 2, 2, 3, 3. Both dice are thrown. The random variable X is the product of the scores on the two dice. Find .


 

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