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
Calculate the range from the following distribution – 
Select and explain. 
A. 10, B. 15, C. 20, D. 25
B: 15
Answer: B: 15 
Explanation: Don’t get confused by size and number.
Just look for largest and smallest value.

Largest value = 75
Smallest value = 60
Range = 75 - 60 =15