Types of Variables Chapter 1

Front

What is a population in statistics?

Back

A population refers to the entire group of individuals or instances about whom we hope to learn.

Front

What is a sample in statistics?

Back

A sample is a subset of a population selected for observation and analysis.

Front

What are quantitative variables?

Back

Quantitative variables are numerical and can be measured or counted, such as height, weight, or income.

Front

What are qualitative variables?

Back

Qualitative variables are categorical and describe characteristics or qualities, such as color, type, or brand.

Front

Give an example of a quantitative variable.

Back

Weekly wage.

Front

Give an example of a qualitative variable.

Back

Type of car.

Front

What does it mean if a variable is continuous?

Back

A continuous variable can take any value within a given range, such as height or temperature.

Front

What does it mean if a variable is discrete?

Back

A discrete variable can only take specific values, often counted, such as the number of students in a class.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample is a smaller group selected from that population.

Front

What is an example of a qualitative observation?

Back

The leaves on the plant are turning brown.