The following information is collected from students upon exiting the campus bookstore during the first week of classes.
a. Height
b. Number of books purchased
c. Eye color
d. Occupation
Classify each of these variables as categorical (qualitative) or numerical. If the variable is numerical, determine whether the variable is discrete or continuous.
NOTE: we will use categorical and qualitative interchangeably throughout!
a. Height is what type of variable?
Qualitative
Numerical, discrete
Numerical, continuous
What is the measurement scale of this variable?
ratio
nominal
interval
ordinal
b. Number of books purchased is what type of variable?
Numerical, continuous
Qualitative
Numerical, discrete
What is the measurement scale of this variable?
nominal
ratio
ordinal
interval
c. Eye color is what type of variable?
Numerical, discrete