UNIT 16-Lesson 3: Populations and Samples

The entire group studied.

• sample

• population

The part of the population being studied

• population

• sample

• random

A sample that is by chance.

• random sample

• stratified sample

• systematic sample

A sample that follows a rule, formula, or pattern.

• random sample

• stratified sample

• systematic sample

A sample chosen at random form a randomly chosen subgroup or subgroups.

• random sample

• systematic sample

• stratified sample

What would be the population in this example?

Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors

• all shoppers in the mall

• the shoppers who were asked their preferences

What would be the sample in this example?

Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors

• all shoppers in the mall

• the shoppers who were asked their preferences

Identify the sampling.

Every tenth student on the list was chosen to participate in the survey.

• random sampling

• systematic sampling

• stratified sampling

Identify the type of sampling.

Seat numbers are chosen from a hat to identify passengers on an airplane who will be surveyed.

• random sampling

• systematic sampling

• stratified sampling

Identify the sampling.

One hundred shoppers are chosen by chance from four randomly chosen computer stores.

• random sampling

• systematic sampling

• stratified sampling