Simple random samples
The simple random sample (SRS) is made of randomly selected individuals. Each individual in the population has the
same probability of being in the
sample. All possible samples of size n have the same chance of being drawn.
How to
choose an SRS of size n from a population of size N:
pLabel. Give each member of the population a
numerical label of the same length.
pTable. To choose an SRS, read from Table B
successive groups of digits of the length you used as
labels. Your sample contains the individuals
whose labels you find in the table.