A restaurant wants to study how well its salads sell. The circle graph shows the sales over the past few days. If 5 of the salads sold were garden ​salads, how many total salads did the restaurant​ sell? 25%
55%
20%
The restaurant sold how many salads over the past few days.

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected