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
Square root of detion is called as 
Select and explain. 
A. Standard detion, B. Standard error, C. Mean detion, D. Range
A: Standard detion
Answer: A: Standard detion 
Explanation: The standard detion Most frequently used measure of detion Widely used measure of variability or diversity used in statistics and probability theory Ref : Park&;s Textbook of Preventive and Social Medicine; 23rd edition - Pgno. 848