expected value; expectation
Mathematical term for the weighted average of possible outcomes. Used in probability and statistics.
expectations; what one hopes for
General use for what someone anticipates or hopes will happen, often in everyday contexts.
expectation value
Physics term, specifically the quantum mechanical expectation value of an observable.
The expected value of the roll of a die is 3.5.
Expectations for the new product's sales are rising.
In quantum mechanics, the expectation value of a physical quantity is obtained by integrating the operator.
Compound of 期待 (きたい, 'expectation') and 値 (ち, 'value').