A sample drawn because of its convenience; it is not a probability sample. For example, I might take a sample of opinions in Berkeley (where I live) by just asking my 10 nearest neighbors. That would be a sample of convenience, and would be unlikely to be representative of all of Berkeley. Samples of convenience are not typically representative, and it is not possible to quantify how unrepresentative results based on samples of convenience are likely to be. Convenience samples are to be avoided, and results based on convenience samples are to be viewed with suspicion. See also quota sample.