Medical MCQ - 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:

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:

Increased mean, decreased median

Increased mean, increased median

Increased mean. no change in median

No change in mean, increased median.

Question Category:

Social & Preventive Medicine

Correct Answer:

Increased mean. no change in median

Description:

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.

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