This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
Simplest measure of dispersion 
Select and explain. 
A. Range, B. Standard detion, C. Mean detion, D. Co-efficient of range
A: Range
Answer: A: Range 
Explanation: Ref:Parks 23rd edition pg 849 Measures of dispersion: Range: simplest measure of dispersion. Mean or Average detion. Standard detion.