Englishfor English speakers
variance
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noun
the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
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noun
an official dispensation to act contrary to a rule or regulation (typically a building regulation)
a zoning variance
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noun
(= variation)
an activity that varies from a norm or standard
any variation in his routine was immediately reported
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noun
(= division)
discord that splits a group
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noun
(= discrepancy)
an event that departs from expectations
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noun
(= variability)
the quality of being subject to variation
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noun
(= divergence)
a difference between conflicting facts or claims or opinions
a growing divergence of opinion
test
Noun
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A test is writing that many learners do in a room at the same time so that people are able to see how much knowledge the learners have.
I'm happy because I got a high mark on the test.
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A test is something someone does to see if something works.
The person did a good test of the machine by pushing all the buttons and watching the machine.
test
Verb
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The action of testing; to try something out to see whether it works.
He tested the software many times.