Obesity is a major lifestyle risk factor associated with non-communicable diseases, such as Type 2 diabetes and cardiovascular disease. Clinicians often monitor Body Mass Index (BMI) to assess these risks.
Table 1 shows clinical measurements for two participants, Participant Y and Participant Z, who are enrolled in a health intervention programme.
Table 1
| Participant | Body mass in kg | Height in m | BMI in kg/m2\text{kg/m}^2kg/m2 |
|---|---|---|---|
| Participant Y | 94 | 1.85 | 27.5 |
| Participant Z | 93 | 1.68 | WWW |
Table 2 shows the standard BMI classifications used by health professionals:
Table 2
| BMI Range (kg/m2\text{kg/m}^2kg/m2) | Classification |
|---|---|
| Less than 18.5 | Underweight |
| 18.5 to 24.9 | Healthy weight |
| 25.0 to 29.9 | Overweight |
| 30.0 to 39.9 | Obese |
| 40.0 or more | Extremely obese |
Determine the BMI classification for Participant Y.
Calculate the value of WWW for Participant Z. Use the equation:
BMI=body massheight2\text{BMI} = \frac{\text{body mass}}{\text{height}^2}BMI=height2body mass
Give your answer to 3 significant figures.