434x Filetype PPTX File size 1.01 MB Source: www.chsd1.org
GOLDEN
Before you try to solve any problem
RULE!!!
dealing with mean, median, mode,
or range you MUST put the numbers
in ORDER in a number line from
LEAST to GREATEST and then
begin to solve the problem!
1st
MEAN
The “mean” is also known as the “average” in a set of
numbers.
First you add up all the numbers in a number line and
then divide the answer by the amount of numbers you
just added.
Example: 1, 3, 5, 7
1 + 3 + 5 + 7 = 16
16 / 4 =
Answer: 4
**TRICK** Mean is the meanest because it takes the most math to figure
out!
MEDIAN
The “median” is the “middle” number in the list of numbers.
Example: 2, 3, 3, 5, 7, 8, 9
Answer: 5
*If there is an odd amount of numbers the median is the middle number.
*If there is an even amount of numbers, to find the median take and add
the middle two numbers and then divide by 2.
Example: 2, 3, 3, 5, 7, 8, 9, 10
5 + 7 = 12
12 / 2 =
Answer: 6
***TRICK*** Think of the median of a highway or the middle of the highway!
MODE
The “mode” is that number which appears the “most”
times.
Example: 1, 1, 2, 3, 4, 4, 4, 5, 6
Answer: 4
***There can be more than one mode only if they are
listed the same amount of times.
Example: 1, 1, 2, 3, 3, 4, 5, 6
Answer: 1 and 3
***TRICK*** Think of Mode…MO…MOst often!
RANGE
The “range” is the “distance” between the lowest
and highest number. Range is found by subtracting
the highest number from the lowest number.
Example: 1, 3, 4, 5, 5, 6, 7, 8
8 – 1 =
Answer: 7
***TRICK*** Think of a shooting range… you have to find the distance
between your highest shot and your lowest shot!
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