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
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