Sampling Bias

Sampling bias occurs when a sample is not representative of the population, often because it only reaches a particular group. Biased samples can lead to misleading conclusions.

Example: surveying only people leaving a gym about exercise habits does not represent the whole town.

Decide whether a sampling approach is likely to be biased, and calculate unrepresented percentages.

Continue exploring related topics:

• Sampling Methods - Choosing a Fair Sample
• Population and Sample - The Whole vs a Part
• Misleading Graphs - Spotting Distorted Data