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When a distribution is skewed to the right, the mean is usually:
AGreater than the median
BSmaller than the median
CExactly the median
DEqual to the mode
Answer & Solution
Correct answer: A. Greater than the median
1. A long right tail contains a few unusually large values.
2. Those values pull the arithmetic mean upward while barely moving the median.
3. When the distribution is skewed to the right, the mean is often greater than the median.
4. That gap between the two centres is itself a signal of skew.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 2 'Descriptive Statistics', sections 2.1-2.7_
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