Which of the following is a sample in which each member of the population has some known chance of being included? A. Probability sample B. Representativeness C. Nonprobability sample D. Convenience sample E. Reliability

A. Probability sample

Explanation:

A Probability Sampling may be defined as the sampling technique where a sample from the larger population are taken or selected using the method which is based on the theory of probability.

In a probability sample, the probability or the chance of each of the element to be included in the sample is non zero and known. A cluster sample is an example of a probability sample.

Hence the correct option is (A).