When every possible sample with the same number of observations is equally likely to be chosen,the result is called a:

A) simple random sample.
B) stratified random sample.
C) cluster sample.
D) biased sample.

Simple Random Sample

A sample in which each member of the population has an equal chance of being selected.

Equal Chance

A condition in probability where every outcome in a sample space is equally likely to occur.

Observations

The act of monitoring or recording data during an experiment or study.