The measure of central tendency least affected by extreme outliers in a skewed distribution is:
- A Arithmetic mean
- B Weighted mean
- C Median ✓
- D Geometric mean
Correct answer: C. Median
Explanation
The median is the middle value when data are arranged in order and is unaffected by extreme values (outliers), making it the preferred measure of central tendency for skewed distributions such as household income or survival times. The mean is pulled toward outliers, while the geometric mean is used for log-normally distributed data.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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