Statistics and Probability · Estimation

Resampling and the bootstrap

Estimating how uncertain a statistic is by repeatedly resampling from the data you already have, instead of relying on a formula.

Also known as: bootstrap resampling, permutation tests.

Start a lesson on Resampling and the bootstrap

Learn first

• Sampling and sampling distributions: How a statistic, like a sample mean, itself varies from sample to sample if you repeated the study.

Related topics

• Confidence intervals: A range, instead of a single number, built to contain the true value a stated percentage of the time.