Meaning & use
extrapolation
An estimate of unknown values made by extending a known trend or pattern beyond the available data.
See it in a sentence
The population forecast was really just an extrapolation from the last ten years of census data.
His conclusion relied on extrapolation rather than any direct evidence.
A note on using this word
Extrapolation becomes less reliable the further a prediction reaches beyond the original data set.
Words with a similar meaning
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