extrapolate
/'ekstrəpəleit/
Học thuậtThân thiện
Definition
- Verb:
- To estimate or infer a value, conclusion, or trend beyond the known data points: To extend known information or a known trend into an area of uncertainty, assuming the established pattern continues.
- To gain knowledge about an unknown situation by applying known principles or data: To reason from the known to the unknown, often by logical extension.
- To derive a general principle or rule from specific instances: To move from particular facts or examples to a broader, more general statement or law.
Usage and Examples
- Verb:
- Scientists can extrapolate future climate trends from current data. (They estimate future conditions by extending the line of current trends.)
- From the sales figures of the first quarter, we extrapolate that annual revenue will exceed our target. (We infer the full-year result based on the early data.)
- It is dangerous to extrapolate broad cultural conclusions from a single anecdote. (It is risky to derive a general rule from one specific case.)
Advanced Usage and Nuances
- Mathematical/Statistical Context: In technical fields, "extrapolate" specifically means to estimate a value outside the range of a set of known data points, often by extending a graph or trend line.
- The model extrapolates the population growth for the next century.
- Logical Reasoning: Used to describe the process of making predictions or hypotheses based on existing evidence and patterns.
- We can extrapolate from her past behavior that she will likely agree to the proposal.
Variants and Related Words
- Extrapolation (noun): The act or process of extrapolating.
- His prediction was based on a logical extrapolation of the evidence.
- Extrapolative (adjective): Relating to or involving extrapolation.
- The report used an extrapolative model to forecast demand.
Synonyms
- Infer: To deduce or conclude information from evidence and reasoning.
- Project: To estimate or forecast future trends based on current data.
- Generalize: To make a broad statement or rule that applies to many cases based on a few.
Antonyms
- Interpolate: To estimate a value the range of known data points. (Note: This is a technical antonym, often used in mathematics.)
- Know (directly): To have direct experience or factual data about something.
Related Phrases and Idioms
- To extrapolate from: The standard preposition used with this verb.
- You cannot extrapolate a universal truth from such a limited sample size.
Verb
- gain knowledge of (an area not known or experienced) by extrapolating
- estimate the value of
- draw from specific cases for more general cases