Scale of Measurement and Variables

Which of the following is an example of a nominal scale?

• Temperature in Celsius

• Height in centimeters

• Gender

• Level of satisfaction

Which scale of measurement allows for the calculation of the mean?

• Ordinal scale
• Nominal scale
• Ratio scale

• Interval scale

Temperature in Fahrenheit is measured using which scale of measurement?

(a)  

Which of the following characteristics is unique to the ratio scale?

• A defined order of categories without a true zero.
• An arbitrary scale with no meaningful ratios.
• A scale that only allows for qualitative comparisons.
• A true zero point allowing for meaningful ratios.

Which of the following is a continuous variable?

• Number of students in a classroom

• Temperature in Celsius

• Marital status (Single, Married, Divorced)

• Blood type (A, B, AB, O)

Which of the following is a categorical variable?

• Age

• Height in meters

• Type of car (SUV, Sedan, Truck)

• Time spent on an activity

What type of variable is "number of siblings"?

(a)  

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

• Blood pressure (measured in mmHg)

• Student grades (A, B, C, D)

• Eye color (Blue, Brown, Green)

• Weight in kilograms