This is when the way we choose a sample is not random, and becasue of this creates a bias in the eventual results. For example, if we look through a crowd, we may be more likely to notice tall people. This is a form of selection bias.
This is when the way we choose a sample is not random, and becasue of this creates a bias in the eventual results. For example, if we look through a crowd, we may be more likely to notice tall people. This is a form of selection bias.