Question

Medical study variables Data from a medical study contain values of many variables for each subject in the study. Some of the variables recorded were gender (female or male); age (years); race (Asian, Black, White, or other); smoker (yes or no); systolic blood pressure (millimeters of mercury); level of calcium in the blood (micrograms per milliliter). Classify each variable as categorical or quantitative.

Short answer

Categorical variable: Gender, Race, Smoker.

Quantitative variable: Age, systolic blood pressure, and level of calcium in the blood.

Step-by-step solution

Step 1. Given information.

The given statement is:

A medical study's data contains values for several factors for each patient.

Step 2. Classify each variable in either categorical or quantitative.

A categorical variable assigns a description to each individual, that categorizes them into one of the numerous groups.

Therefore, it will include Gender, Race, Smoker.

A quantitative variable is a set of numerical values that count or measure some aspect of each person.

Therefore, it will include Age, systolic blood pressure, and level of calcium in the blood.