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
Standard detion is a measure of- 
Select and explain. 
A. Central tendency, B. Detion from mean, C. Standard error, D. Skewness
B: Detion from mean
Answer: B: Detion from mean 
Explanation: Ref: Parks 23rd edition pg 849 Standard detion: Gives idea of the spread or dispersion Lager the standard detion value , greater is the dispersion of values about the mean.