Mathematics for IGCSE & O level - Categorical, Numerical And Grouped Data (Section 5 - No. 22)
What is a disadvantage of the mean?
The mean doesn't use data values.
The mean has a disadvantage that it uses every data value.
The mean has a disadvantage that it uses a number of data values.
The mean is always useful for a small sample.
Explanation
The mean has the disadvantage that it uses every data value but it can be misleading if there are one or two very high or very low data values.
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