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
Values are calculated in descending order to calculate: 
Select and explain. 
A. Mean, B. Median, C. Mode, D. Discrete variable
B: Median
Answer: B: Median 
Explanation: Median is calculated only either by arranging in ascending or descending order. In other condition it is not necessary. Ref: Park 21st edition, page 646.