Question: Say we have two random variables A and B. They are always equal. Is it correct to say that if B takes value b, then

Say we have two random variables A and B. They are always equal. Is it correct to say that if B takes value b, then the random variable var(A|B), which is not the same as the numerical value var(A|B=b), takes the value E[(A-E[A|B=b])^2| B=b]

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