Classify each measurement as categorical or quantitative

a. Eye color of a group of people

b. Daily high temperature of a city over several weeks

c. Annual income

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.