Random sampling is referred to as that sampling technique where the probability of choosing each sample is equal. … Non-random sampling is a sampling technique where the sample selection is based on factors other than just random chance.

What is a nonrandom sample?

A sample in which the selection of units is based on factors other than random chance, e.g. convenience, prior experience, or the judgement of the researcher.

What is a random and representative sample?

Representative sampling and random sampling are two techniques used to help ensure data is free of bias. A representative sample is a group or set chosen from a larger statistical population according to specified characteristics. A random sample is a group or set chosen in a random manner from a larger population.