WAEC - Economics (2015 - No. 5)
A disadvantage of the mean as measure of central tendency is that?
is affected by extreme values
can only be used for continuous data
cannot be used to measure the qualities of a population
cannot be determined in group data
Giải thích
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.