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Part 1:A regular six-faced fair die will be rolled. LetY be the number obtained. A.What is the expected value of Y? B.What is the variance

Part 1:A regular six-faced fair die will be rolled. LetY be the number obtained.

A.What is the expected value of Y?

B.What is the variance of Y?

Part 2:A regular six-faced fair die will be rolled 144 times. Let X be the sum of the 144 numbers obtained.

A.What is the expected value of X?

B.What is the variance of X?

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