A population consists of all the members of a group of interest. A sample is a subset of the population.
Random sample.
Practice makes perfect
A population consists of all the members of a group of interest. Since it may be impractical to examine every member of a population, a sample — a subset of the population — is sometimes selected to represent the population. The sample can then be analyzed to draw conclusions about the entire population.
Let's consider our situation.
Each employee in a company writes their name on a card and places it in a hat. The employees whose names are on the first two cards drawn each win a gift card.
Here, the population consists of the employees who work in a company. The sample consists of the employees whose names are drawn from the hat. Samples can be classified into different categories.
