This question is about parameter vs statistic.

Why are samples used in research?

By Zippia Team - Dec. 7, 2022

Samples are used in research because trying to study an entire population isn't feasible. If for instance, you are studying the average height of every orange tree in Florida, it's completely unreasonable to measure every tree in every Flordia orchard, as well as the private orange trees people own.

Therefore you will select a sample number of trees and measure those, then extrapolate that number to the entire population.

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