Question on: WAEC Economics - 2015
A disadvantage of the mean as measure of central tendency is that?
A
is affected by extreme values
B
can only be used for continuous data
C
cannot be used to measure the qualities of a population
D
cannot be determined in group data
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Correct Option: A
The important disadvantage of mean is that it is sensitive to extreme values/outliers, especially when the sample size is small. Therefore, it is not an appropriate measure of central tendency for skewed distribution. Mean cannot be calculated for nominal or nonnominal ordinal data.
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