In a distribution of serum albumin values that is negatively skewed, which of the following relationships between the three measures of central tendency is expected?
- A Mean is less than median, which is less than mode ✓
- B Mean is greater than median, which is greater than mode
- C Mean equals median equals mode
- D Mode is less than median, which is less than mean
Correct answer: A. Mean is less than median, which is less than mode
Explanation
In a negatively skewed (left-tailed) curve, the long tail of low values pulls the mean toward the tail, so the mean falls below the median and the mode remains at the peak of the curve. The order is mean less than median less than mode. Option B describes positive skew, where extreme high values drag the mean upward past the median.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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