Concepts:
A population is a group of people, objects or events having the same characteristics. A sample is a subgroup of a population A sample is representative when all the characteristics of the population can be found in the sample in the same proportions
A population is a group of people, objects or events having the same characteristics.
A sample is a subgroup of a population
A sample is representative when all the characteristics of the population can be found in the sample in the same proportions
A census concerns every member of a population A poll uses data derived from a sample to draw conclusions about an entire population A survey often involves experts with data gathered from various sources.
A census concerns every member of a population
A poll uses data derived from a sample to draw conclusions about an entire population
A survey often involves experts with data gathered from various sources.
