Mathematics for IGCSE & O level - Categorical, Numerical And Grouped Data (Section 4 - No. 38)
Which statement accurately describes the relationship between range and outliers in a dataset?
Outliers have no effect on the range.
The range is directly affected by the presence of outliers.
The range is always equal to the interquartile range in the presence of outliers.
Outliers increase the range, but only if they are greater than the mean.
Explanation
The range is very sensitive to outliers since it is the difference between the minimum and maximum values.
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