Quetelet Index is also known as :

Question

Accepted Answer

The Quetelet Index is more commonly known as the Body Mass Index (BMI), which is why Option 2, "B. M. Index," is the correct answer. The BMI is a widely used measure to assess whether a person has a healthy body weight for a given height. It is calculated by dividing a person's weight in kilograms by the square of their height in meters. The concept was developed by the Belgian mathematician and statistician Adolphe Quetelet in the 19th century, which is why it is sometimes referred to as the Quetelet Index.

1. **Explanation for Option 2 (B. M. Index):**
   - The Body Mass Index (BMI) is a simple and commonly used method to categorize individuals based on their body weight relative to their height. It helps in identifying whether a person is underweight, normal weight, overweight, or obese. The term "Quetelet Index" is synonymous with BMI because Adolphe Quetelet introduced this formula as a way to describe the distribution of body weight in a population.

2. **Explanation for why other options are incorrect:**
   - **Option 1 (Height-Age Index):** This index would imply a relationship between a person's height and their age, which is not what the Quetelet Index measures. The Quetelet Index focuses on weight relative to height, not age.
   - **Option 3 (Skinfold Index):** The Skinfold Index refers to a method of estimating body fat percentage by measuring the thickness of skinfolds at various body sites. This is unrelated to the Quetelet Index, which does not involve skinfold measurements.
   - **Option 4 (Weight-Age Index):** Similar to Option 1, this index would suggest a correlation between weight and age. The Quetelet Index, however, is concerned with the ratio of weight to height, not age.

In conclusion, the Quetelet Index is accurately represented by Option 2, "B. M. Index," as it directly relates to the calculation and purpose of the Body Mass Index.