Answer:
a. Eye color of a group of people
Categorical since the eye color can't be expressed as a numerical value.
b. Daily high temperature of a city over several weeks
Quantitative. The maximum temperature from a set of temperatures is a numerical value since by definition the temperatur is a quantitative variable
c. Annual income
Quantitative. The income can't be measured in categories since is represented by a number.
Step-by-step explanation:
Previous concepts
Categorical variables represent variables "that can be placed into categories". For this type of variable we don't have a numerical values and we can't apply operations between the possible values of the variable.
A quantitative variable is any variable that can be represented by numbers in two possible ways discrete (countable) or continuous (not countable).
Solution to the problem
a. Eye color of a group of people
Categorical since the eye color can be expresses as a numerical value.
b. Daily high temperature of a city over several weeks
Quantitative. The maximum temperature from a set of temperatures is a numerical value since by definition the temperatur is a quantitative variable
c. Annual income
Quantitative. The income can't be measured in categories since is represented by a number.
