Random sampling is a random means of gathering data points from all groups. It eliminates bias within your data sets by using ...

The method of simple random sampling (METHOD=SRS) selects units with equal probability and without replacement. Each possible sample of n different units out of N has the same probability of being ...

A general method is given for generating random permutations of integers using a table of random sampling numbers and without wasting the random numbers read. This is more convenient in practice, ...

Suppose that the sample of students described in the previous section was actually selected using stratified random sampling. In stratified sampling, the study population is divided into ...