Expectation - Definition
expectation
n 1: belief about (or mental picture of) the future [syn:
expectation, outlook, prospect]
2: anticipating with confidence of fulfillment [syn:
anticipation, expectation]
3: the feeling that something is about to happen
4: the sum of the values of a random variable divided by the
number of values [syn: arithmetic mean, first moment,
expectation, expected value]