Mean, Median, Mode, and Range

Do you KNOW this?

Mean

Add all the data and divide the sum by the number of addition

example: 80+70+90=240
240/3=80

Median

Order the numbers from least to greatest. And find the number in the middle

Example: 8,9,9,10,11,11,12,12,13

Median=11

The mode can have one mode, more than one, or NO modes!!!

Mode

Order the numbers from least to greatest. The mod is a number that appears the most.

Example: 1,2,3,4,5-No modes
1,3,5,3,1-2 Modes
1,2,1,21-1 Mode

Range

Order the numbers from least to greatest. Then - the littlest number from the geatest number to find the number.

Example: 83,85,89,95,97
LITTLE-83
GREATEST-97
97-83=14 RANGE