Mean, Mode, Median, Range

Mean - the AVERAGE

Add the numbers then divide by how many numbers there are.

Examples of MEAN or the Average:

John scored 80, 75, 50, and 100 on his MATH tests. What is his Math test AVERAGE or MEAN?

LeBron James scored 29, 18, 30, and 25 points in his last 4 games. What is his scoring average?

Mode

​The number that appears the most times.

10, 11, 5, 7 10, 16, 20, 10, 2, 9, 10, 16, 29, 17, 11

Which number is the MODE?

​Median - Number in the middle

10, 20, 3, 8, 4, 9, 5

1. Put the numbers in order from the LEAST (Smallest) to GREATEST (Largest)
2. Find the number in the middle. (easy to do when it is an ODD number)
3. When it is an EVEN number, take the two numbers in the middle, add them, then divide by two.

3, 4, 5, 8, 9, 10, 20 (What is the Median?) = 8

​Range - Difference between the largest and smallest number

To find the range, put the numbers in order from the least to the greatest:

40, 28, 35, 10, 4, 17 -------4, 10, 17, 28, 35, 40
Then SUBTRACT the largest number and smallest number. The RANGE is also called the SPREAD.

40 - 4 = 36, so 36 is the RANGE or SPREAD.