If you mean probabilistic expectation, the answer is no.

The meal did not meet the expectation.

The expectation was rather low.

I assume this is a trick question, and the answer is "everything".

If you expect it, it is your expectation

and

if it is your expectation, you expect it.

Yes. the conditional expectation of X given Y is simply the expectation of X if X and Y are uncorrelated. This is a consequence of one of the properties of conditional expectation.

Experiments in Expectation was created in 2001.