expectation
- noun
- /ˌɛkspɛkˈteɪʃən/
- Specialized
- In statistics, the expectation of a random variable is calculated by dividing the total of all possible values by the number of those values.
- normal expectations
- rational expectations
- expectation (p < .01)
Examples
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To find the expectation of this experiment, we need to sum the outcomes and divide by the total number of trials.
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The expectation of the survey results was determined by averaging the scores of each participant.
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This way, the expectation level goes down.
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Sometimes our expectations are betrayed by the numbers.
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Over the next twenty years, other states would expand their expectations of mothers to earn.
Academic text (1995) -
The consumer may form an expectation of the payoff of an investment.
Academic text (1991) -
Individual teaching efficacy is the situation-specific expectation that the teacher can help students.
Academic text (1995) -
Like the railroad trainees, the Foundation associates had no expectation of compensation.
Academic text (2017) -
Long-run growth expectations for financial assets need to be anchored in reasonable growth expectations for the overall economy.
Academic text (2017) -
New programs in Women's Studies are established in the open expectation that they will be academic manifestations of feminism.
Academic text (1993)
Synonyms
The usual level of something, often shown by a number
Having the average value for a set of numbers
You find the average result you expect by adding each possible outcome times its chance
The average of a set of numbers that you get by adding them and dividing by how many there are
The average of numbers found by adding them and dividing by how many there are
A number you get when you add numbers and divide by how many numbers there are
Compounds
- Informal
Strong pressure you feel because other people want you to do well
Surface Forms
Morphology
Etymology
Expectation comes from the Latin parts ex- 'out' and spectare 'to look', and in math it grew to mean the number you 'expect' on average. So the statistical expectation is the value you would 'look for' if you repeat an experiment many times.