This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Simplest measure of dispersion? 
Select and explain. 
A. Range, B. Standard detion, C. Mean detion, D. Co-efficeint of range
A: Range
Answer: A: Range 
Explanation: Ans. is 'a' i.e., Range The range Range is the simplest measure of dispersion. It is defined as the difference between the largest and smallest values of the variable. Range (R) = Largest value (L) - Smallest value (S)