[Spoiler] (I'm Overwhelmed) Data Analysis Progress Quiz #11 Question #12

The question asked:

If you just let all three integers be zero, wouldn’t Quantity A equal Quantity B? The question only says “X outputs three integers” and zero is an integer. It also didn’t specify that the three integers must be distinct.

E(X)=\frac{0+0+0}{3}=0
E(X^2)=\frac{0^2+0^2+0^2}{3}=0

So the answer should be D, since we also know E(X^2)>E(X) (except when the three integers are zero).

which is just one integer with probability 1?

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