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
Out of 11 births in a hospital, 5 babies weighed over 2.5 kg and 5 weighed less than 2.5 kg. What value dose 2.5 represent - 
Select and explain. 
A. Geometric average, B. Arithmetic average, C. Median average, D. Mode
C: Median average
Answer: C: Median average 
Explanation: Median

Is an average, to obtain this, the data is first arranged in an ascending or descending order of magnitude and then the value of the middle observation is located which is called median.
In the question, 5 value are below 2.5 and 5 value are above 2.5, so if we arrange the data in increasing or decreasing order 2.5 will represent the middle one and can be taken as median average of given data.