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
In a survey of sleep apnea scores among 10 people, the highest sample of 58 was entered by mistake as 85. This will affect the result as: 
Select and explain. 
A. Increased mean, decreased median, B. Increased mean, increased median, C. Increased mean. no change in median, D. No change in mean, increased median.
C: Increased mean. no change in median
Answer: C: Increased mean. no change in median 
Explanation: Ans: C. Increased mean. no change in median(Ref. Park 24/e p885, 23/e p847, 22/e p786)Value of median is not affected by abnormal very high or very low value.Mean is unduly influenced by abnormal values (either very high or very low) in distribution.