Which measure of central tendency is generally least affected by an extreme value?
Correct answer: D. Median
- A. Arithmetic mean
- B. Geometric mean
- C. Weighted mean
- D. Median
Explanation
The median depends on the position of observations rather than their numerical distance from the centre. Therefore, an unusually large or small value usually affects the median less than it affects the mean.
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About Measures of Central Tendency and Dispersion
Central tendency includes mean, weighted mean, median and mode for raw and grouped data. Dispersion covers range, quartiles, interquartile range, variance, standard deviation and coefficient of variation, including the effect of changes in scale and the distinction between a representative centre and the spread around it.
Practise Measures of Central Tendency and Dispersion
30 free Measures of Central Tendency and Dispersion MCQs from Quantitative Methods, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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