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Vocabulary Builder — Essay & Answer Writing

Extrapolation

noun / ek-STRAP-uh-LAY-shun / Medium
Meaning

The process of estimating unknown values by extending or projecting from known data, often beyond the range of observed information

Origin / Etymology

Latin extra (beyond) + polire (to polish, smooth); coined in mathematics for extending curves beyond data points

Synonyms
Projection Estimation Inference
Antonyms
Interpolation Observation Measurement
Example Sentence
"India GDP calculations relied on single extrapolation for services sectors, using formal sector data as a proxy for the vast informal economy."
🎯 UPSC Usage

Use in GS-3 answers on statistical methodology, GDP estimation, and data credibility. Demonstrates understanding of how economic data is constructed, not just reported.

Relevant Subjects
Economy
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