Question: Suppose random variable X is equally like to be 1, 3, 5; while random variable Y is equally like to be 2, 4, 6. Let

Suppose random variable X is equally like to be 1, 3, 5; while random variable Y is equally like to be 2, 4, 6. Let Z = X+Y.

1) How to simulate the random variable Z in excel? [ Select ] ["RANDBETWEEN(3,11)", "None of the above", "2*RANDBETWEEN(1,3)-1+2*RANDBETWEEN(1,3)", "RANDBETWEEN(1,6)", "RANDBETWEEN(1,3,5) + RANDBETWEEN(2,4,6)"]

2) what is the probability of getting Z=7? [ Select ] ["1/3", "2/9", "1/9", "4/9"]

3) what is the expected value of Z

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