Question

what is the purpose of the body mass index? to measure muscle mass to measure the percentage of body fat to judge whether a person is at a healthful weight for their height to calculate the weight and density of bone structure

Explanation:

The body - mass index (BMI) is calculated as weight (in kilograms) divided by the square of height (in meters). It is used to judge whether a person is at a healthy weight for their height. It is a simple and commonly - used screening tool for weight - related health risks.

Answer:

to judge whether a person is at a healthy weight for their height