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Transcript
Mean Median Mode
Range
by: courtney widmer
MEAN
definition: 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.
MEDIAN
definition: 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
RANGE
definition: 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
15,18,18,25,99,99,18,15,18,32
1. mode
2. range
3.mean
4.median
5.any of the answers the same
ANSWERS
1.18
2.84
3.35.7
4.18
5.yes