A population of 100 dots is 40% green. Draw samples of 10 and watch each sample's share of green bounce around that true 40%.
Introduction to Inference: Population vs. Sample
Population (100 Individuals, Parameter p = 0.40)
Success (40%)
Failure (60%)
Click the button to draw a sample of size n = 10.
Statistical inference is using a sample statistic (like p̂) to estimate an unknown population parameter (like p). Because samples contain only a subset of the population, estimates are subject to sampling variability.
