# Mean, Median, Mode, and Range - PowerPoint PPT Presentation

1 / 13
Title:

## Mean, Median, Mode, and Range

Description:

### WHAT DO THEY ALL MEAN? Anissa Saunders 5th Grade Mean Is the average of a set of numbers. How is the mean of a set of numbers found? Add all the numbers in the set ... – PowerPoint PPT presentation

Number of Views:572
Avg rating:3.0/5.0
Slides: 14
Provided by: Anis59
Category:
Tags:
Transcript and Presenter's Notes

Title: Mean, Median, Mode, and Range

1
Mode
Mean
Range
Median
WHAT DO THEY ALL MEAN?
2
Mean
• Is the average of a set of numbers.

3
How is the mean of a set of numbers found?
• Add all the numbers in the set together.
• Divide the sum by the number of numbers in the
set.
• The quotient is the mean of the set of numbers.
• Example 20, 15, 25
• Divide 60 by 3
• The mean is 20

4
Median
• Is the number that is in the middle of a set of
numbers.
• (If two numbers make up the middle of a set of
numbers then the median is the average of those
two numbers.)

5
How is the median of a set of numbers found?
• Arrange the numbers in the set in order from
least to greatest.
• The middle number is the median of a set of
numbers.
• If more than one number is in the middle of the
set of numbers, the average of those two numbers
is the median of the set of numbers.

6
• Examples
• 10, 15, 20
• 15 is the median of this set of numbers.
• 10, 15, 20, 25
• Divide 35 by 2 17.5
• The median of this set of numbers is 17.5

7
Mode
• Is the number in a set of numbers that occurs the
most often.

8
How do I identify the mode of a set of numbers?
• Arrange the set of numbers in order from least to
greatest.
• The number that occurs the most often is the mode
of that set of numbers.

9
• Example
• 10, 15, 10, 15, 20, 25, 15, 30
• 10, 10, 15, 15, 15, 20, 25, 30
• 15 is the mode of this set of numbers because it
is the numbers that occurs the most.

10
Range
• Is the difference between the highest and lowest
numbers in a set of numbers.

11
How is the range of a set of numbers identified?
• Arrange the numbers in the set in order from
least to greatest.
• Subtract the lowest number from the highest
number in the set of numbers.
• The difference of the two numbers is the range of
a set of numbers.

12
• Example
• 10, 15, 20, 25, 30, 35, 40, 45, 50
• 50 10 40
• 40 is the range of this set of numbers.

13
Its Time To Practice!
• 10 5 25 50 15 10 40 35 10 20
• 5 10 10 10 15 20 25 35 40 50
• What is the mean?