Definitions for: Expectation


[n] belief about (or mental picture of) the future
[n] the sum of the values of a random variable divided by the number of values
[n] the feeling that something is about to happen
[n] wishing with confidence of fulfillment



Webster (1913) Definition: Ex`pec*ta"tionn. [L. expectio. exspectio: cf. F.
expectation.]
1. The act or state of expecting or looking forward to an
event as about to happen. ``In expectation of a guest.''
--Tennyson.

My soul, wait thou only upon God, for my expectation
is from him. --Ps. lxii. 5.

2. That which is expected or looked for.

Why our great expectation should be called The seed
of woman. --Milton.

3. The prospect of the future; grounds upon which something
excellent is expected to happen; prospect of anything good
to come, esp. of property or rank.

His magnificent expectations made him, in the
opinion of the world, the best match in Europe.
--Prescott.

By all men's eyes a youth of expectation. --Otway.

4. The value of any chance (as the prospect of prize or
property) which depends upon some contingent event.
Expectations are computed for or against the occurrence of
the event.

5. (Med.) The leaving of the disease principally to the
efforts of nature to effect a cure.

Expectation of life, the mean or average duration of the
life individuals after any specified age.

Syn: Anticipation; confidence; trust.

Synonyms: anticipation, arithmetic mean, expected value, first moment, outlook, prospect

See Also: anticipation, anticipation, apprehension, belief, expectancy, expectancy, feeling, foretaste, hope, hopefulness, mean, mean value, misgiving, possibility, promise

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