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Notes Mean, Median, Mode & Range - Eagle Mountain-Saginaw Independent ...

the median is 3 because it is in the middle when the numbers are listed in order. Mean The mean of a set of data describes their average. To find the mean, add all of the numbers and then divide by the number of items in the set. The mean of a set of data can be greatly affected if one of the numbers is an outlier. The mean is a good measure of ...