An outlier will affect which of the following measures the most?
A)mode
B)median
C)mean
D)interquartile range

Question

Quizplus · Accepted Answer

An outlier will have the greatest impact on the mean, as it is calculated by taking the sum of all values and dividing by the total number of values. If one value is much larger or smaller than the others, it will greatly affect the overall mean. The mode is the value that appears most frequently and is not affected by outliers. The median is the middle value and is less affected by outliers than the mean, but still can be shifted if an extreme value is present. The interquartile range is calculated using quartiles and is not directly impacted by outliers.

An Outlier Will Affect Which of the Following Measures the Most