#### Understanding

Numbers used in describing a characteristic of the population (typically measures of center, spread, maximum and minimum) can be estimated by calculating the corresponding statistic using the data in the sample.

### What to look for

To understand how a sampling process works, students need to understand the difference between a population (the large set of interest) and a sample (a subset of that population).### Sample Assessment

A survey given to some of the people at the mall on Friday night indicated that shopping hours at the mall should be extended. What is the population for this sample?

Answer:

People who were shopping at the mall on that Friday night.