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expectations

 - 3 dictionary results

ex⋅pec⋅ta⋅tion

  [ek-spek-tey-shuhn]
Use expectations in a Sentence
–noun
1. the act or the state of expecting: to wait in expectation.
2. the act or state of looking forward or anticipating.
3. an expectant mental attitude: a high pitch of expectation.
4. something expected; a thing looked forward to.
5. Often, expectations. a prospect of future good or profit: to have great expectations.
6. the degree of probability that something will occur: There is little expectation that he will come.
7. Statistics. mathematical expectation.
8. the state of being expected: a large sum of money in expectation.
Origin:
1530–40; < L expectātiōn- (s. of expectātiō) an awaiting, equiv. to expectāt(us) (ptp. of expectāre to expect ) + -iōn- -ion

Related forms:
ex⋅pec⋅ta⋅tion⋅al, adjective
ex⋅pec⋅ta⋅tion⋅ist, noun

Synonyms:
2. expectancy, anticipation; hope, trust.

mathematical expectation

 
–noun
1. Mathematics. the product of the probability of the occurrence of an event and the value associated with the occurrence of a given event.
2. Statistics. the summation or integration, over all values of a variate, of the product of the variate and its probability or its probability density.
Also called expectation, expected value.

Origin:
1830–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To expectations
ex·pec·ta·tion   (ěk'spěk-tā'shən)   
n.  

    1. The act of expecting.

    2. Eager anticipation: eyes shining with expectation.

    3. Something expected: a result that did not live up to expectations.

    4. expectations Prospects, especially of success or gain.

    5. The expected value of a random variable.

    6. The mean of a random variable.

  2. The state of being expected.

    1. Something expected: a result that did not live up to expectations.

    2. expectations Prospects, especially of success or gain.

    3. The expected value of a random variable.

    4. The mean of a random variable.

  4. Statistics

    1. The expected value of a random variable.

    2. The mean of a random variable.

ex'pec·ta'tion·al adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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