Question

donnie is 510\ and mark is 61\ but they both weigh 210 lbs. which would be the best method to measure whether donnie or mark has the healthier weight?
a. ○ waist measurement
b. ○ bmi
c. ○ clothing size
d. ○ scale

Explanation:

To determine the healthier weight between Donnie and Mark (who have the same weight but different heights), we analyze the options:

• Option A (waist measurement): Measures abdominal fat but doesn’t account for height or overall body composition relative to weight.
• Option B (BMI): Body Mass Index is calculated using weight and height (\( \text{BMI} = \frac{\text{weight (lb)}}{\text{height (in)}^2} \times 703 \) or metric equivalents). It quantifies weight relative to height, making it ideal for comparing healthiness across different heights with the same weight.
• Option C (clothing size): Varies by brand/style and doesn’t reflect health or body composition.
• Option D (scale): Only measures weight, which is identical for both, so it provides no comparative health information.

BMI is the best method here because it incorporates height (a key variable differing between Donnie and Mark) to assess weight-related health.

Answer:

B. BMI