James M. answered 07/02/19
Math tutoring from K-to-Jr High and SAT, GED Preparation
Because of the outlier $100 donation, the mean will be effected and provide an answer that does NOT reprepresent the average gift amount.
The mode of $10 is better than the mean, but does not reflect the gifts that were more than $10.
Given the above discrepancies for the mean and mode, the median is the best representation.
$10 $10 $10 $15 $15 $20 $100
The median is $15 and indicates that there were an equal number of gifts less than $15 (3) and greater than $15 (3).