Mean, Median, Mode, and Range

Hey diddle diddle, the median’s the middle, You add then divide for the mean. The mode is the one that you see the most, And the range is the difference between.

Mean

Also known as the average. The mean is found by adding up all of the given data and dividing by the number of data entries.

To calculate mean, add together all of the numbers in a set and then divide the sum by the total count of numbers.

Range

The range is the difference between the highest and lowest values within a set of numbers. To calculate range, subtract the smallest number from the largest number in the set.

Median

The median is the middle number. First you arrange the numbers in order from lowest to highest, then you find the middle number by crossing off the numbers until you reach the middle.

The statistical median is the middle number in a sequence of numbers. To find the median, organize each number in order by size; the number in the middle is the median.

Mode

This is the number that occurs most often.