Multiplication Table 1-12 Worksheet Page 12
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12Mean, Median, Mode, and Range
The mean
The mean is the same as the average. Add up the series of
numbers
and divide by the number of numbers in the list.
Example: Find the mean of 4, 6, 10, 4.
Step 1: Add all the numbers = 24
Step 2: dividing 24 by the number of numbers in the list. 24÷4=6
the mean or average of 4, 6, 10, 4 is
6
The median
The "median" is the "middle" value in the list of numbers.
To find the
median,
your numbers have to be listed in numerical order,(from least to greatest) so
you may
have to rewrite your list first.
Example : A student has gotten the following grades on his tests: 60, 70, 80,
90, and 100
The
median grade is 80
The mode
The "mode" is the value that occurs most often. If no number is
repeated,
then there is no mode for the list. Find the mode of 4,6,4 and 10
Example . First you list the numbers in order . 4, 4, 6, 10
Then you look to see which number repeats the most .
4 repeats twice, which means it's the
mode is 4.
The Range
The range of a set of data(numbers) is the difference between the
highest and lowest values in the set.
Example: find the range of 4, 6, 4, 10
step-1 Arrange the numbers in order by size 4, 4, 6, 10
step-2 Subtract the smallest number from the largest number. 10- 4 = 6
6 is the Range
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