Most Commonly Used Measure of Dispersion
The most commonly used measure of dispersion is:
- Range
- Variance
- Standard deviation — Correct Answer
- Mean deviation
Explanation:
Correct Answer: Standard deviation
Standard deviation (SD) is the most commonly used (ideal) measure of dispersion.
Measures of Dispersion Compared
| Measure | Special Property |
|---|---|
| Range | Difference between largest and smallest value; most affected by extreme values; includes 100% of items |
| Mean deviation (MD) | Least affected by extreme values; SD = 5/4 × MD |
| Standard deviation (SD) | Ideal measure; always greater than MD |
| Variance | Square of SD |
| Standard error (SE) | SE = SD/√N; relative measure |
| Coefficient of variance (CV) | CV = SD/AM × 100; free from units (relative measure) |
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
