Range-Mean-Median-Mode by huanghengdong

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									Range- the difference between the largest and smallest number in a group of
numbers.

Mean- the average of a set of numbers. To find the mean, add the numbers to find
the sum. Then divide the sum by the number of numbers in the data.

Median- the middle number in a set of numbers ordered from least to greatest.

Mode- the most often used number in a set of numbers. Not all sets of numbers
have a mode.

EXAMPLES:
The examples below shows how to find the range, mean, median, and mode for a set
of numbers.

Set of Numbers: 3, 6, 1, 6, 9

Always order the numbers from least to greatest to help you keep your work
organized & accurate!

Set of Numbers (This time they are ordered from least to greatest): 1,3,6,6,9

Range: Find the difference between the smallest & largest number.

9-1=8
The range is 8.

Mean: the average. First find the sum, then divide.

Step 1 for finding the mean: 1 + 3 + 6 + 6 + 9= 25
Step 2 for finding the mean: 25 divided by 5= 5

The mean is 5.
Median: the middle number

1, 3, 6, 6, 9
The median in this set of numbers is 6.

Mode: most often number used.

1,3,6,6,9
The mode is 6 because it is used two times in this set of numbers.

								
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