Mean Median Mode Range

by: courtney widmer

MEANdefinition: the average of a set of data

steps

1 add numbers

2 count numbers

3 divide the number of numbers by the sum of all numbers

example: 15+47+6+48+69+11=196/6=32.7

mean is used for many different ways like at school. when we take a test we have to have a class average we do the exact same thing as we did above.

MEDIANdefinition: the middle number of a set of data

steps

1. put numbers in order

2. mark numbers from start to end

3. if there are two numbers left add the numbers together and divide by 2

MODE

definition: the number that appears most in a set of data

steps

1.put in order

2.look and see which number has the most

! there sometimes will be more than one mode!

you would use this in life when doing test scores to see which ones grades has the most

RANGEdefinition: the smallest number and largest number in a set if data

steps

1. put in order

2. take the first and last number and subtract them

example what is the range below out of the three exam.

99

99-65=34

QUESTION

15,18,18,25,99,99,18,15,18,321. mode2. range3.mean4.median5.any of the answers the same

ANSWERS

1.182.843.35.74.185.yes