Mean, Median, Mode, Range!!!

The data of life

Mean

The mean is also known as the average. You find the mean by adding all of the data in a set and then dividing by the number of things that were in that set.

Example: 4, 6, 5, 3, 2 Step 1: Add up the numbers (20) Step 2: Divide by the amount of numbers in the set (20/5) . In this example, the mean is 4.

Median

The middle value

Mode

There can be one mode, more than one mode, or no mode!!

One mode: 1, 5, 3, 2, 6, 3, 4 :The mode is 3. 3 occurs two times and the others, only once

Two modes: 2, 5, 4, 2, 5: 2 and 5. Both happen twice and 4 only occurs once

No mode: 1, 2, 3, 4, 5: No mode. All happen only once


Range

The smallest number subtracted from the largest number!


Examples

There were 7 rain storms last summer. The amount of rainfall during each storm was:


7 centimeters, 4 centimeters, 4 centimeters, 4 centimeters, 3 centimeters, 7 centimeters

6 centimeters


What was the mean rainfall?