QUIZ: Variable Types

Question 1:

Quantitative variables can be divided into continuous and discrete types:

A. True

B. False

Correct answer: A

Explanation: Quantitative variables measure or quantify something and can be split into continuous variables, which have a continuous range (e.g., age or income), and discrete variables, which are grouped or categorized (e.g., age groups or income brackets).

Question 2:

Which of the following is an example of a continuous quantitative variable?

A. Eye color

B. Income

C. Room type in a house

D. Education level

Correct answer: B

Explanation: Income is a continuous quantitative variable, as it is a metric that measures or quantifies a continuous range of values.

Question 3:

Nominal variables have a natural order:

A. True

B. False

Correct answer: B

Explanation: Nominal variables do not have a natural order. They are qualitative variables that are used to label or categorize items, such as eye color or room type in a house.

Question 4:

Which of the following is an example of an ordinal qualitative variable?

A. Age groups (18-25, 26-34, etc.)

B. Eye color (blue, green, brown)

C. Education level (middle school, high school, bachelor's, etc.)

D. House size in square meters

Correct answer: C

Explanation: Education level is an ordinal qualitative variable, as it represents a categorization with a clear, natural order (e.g., middle school → high school → bachelor's, etc.).

Question 5:

Survey data with scales from 1 to 5 or from very unsatisfied to very satisfied is an example of which variable type?

A. Continuous quantitative

B. Discrete quantitative

C. Nominal qualitative

D. Ordinal qualitative 

Correct answer: D

Explanation: Survey data with scales from 1 to 5 or from very unsatisfied to very satisfied is an example of an ordinal qualitative variable because, although the values themselves don't have a natural meaning, they are arranged in a clear order.