Question

Medical study variables: Data from a medical study contain values of many variables for each of the people who were the subjects of the study. Which of the following variables are categorical and which are quantitative?

a) Categorical: Age, Quantitative: Blood pressure.

b) Categorical: Gender, Quantitative: Height.

c) Categorical: Smoking status, Quantitative: Cholesterol level.

d) Categorical: Education level, Quantitative: Heart rate.

Answer 1

Age is a categorical variable and blood pressure is a quantitative variable. Gender is a categorical variable and height is a quantitative variable. Smoking status is a categorical variable and cholesterol level is a quantitative variable. Education level is a categorical variable and heart rate is a quantitative variable.

Step-by-step explanation:

Categorical variables are those that place the person or thing into a category, while quantitative variables are those that take on values with equal units. Based on this definition, we can determine that:

• a) Categorical: Age, Quantitative: Blood pressure.
• b) Categorical: Gender, Quantitative: Height.
• c) Categorical: Smoking status, Quantitative: Cholesterol level.
• d) Categorical: Education level, Quantitative: Heart rate.