powerpoint on what the mean, median, and mode are.

1. DATA PROBABILITY AND
STATISTICS-GRADE 4
OBJECTIVE: USE MEAN, MEDIAN, AND
MODE TO DESCRIBE A SET OF DATA.
Created by: SHERRI COLLIE
EDN 300-002
JULY 14, 2009

2. CREDITS:
PICTURES BY: GOOGLE AND POWERPOINT
CONTENT AND CURRICULUM PROVIDED BY:
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CREATED BY: SHERRI COLLIE
A MATH LESSON PLAN FOR FOURTH GRADERS

3. MAIN MENU

4. CONTENT 1.1
WHAT ARE THEY?
•MEAN
•MEDIAN
•MODE

5. For more
math tips
CONTENT 1.2 press here!
The Mean, Median, and Mode are
summary statistics that help you
describe a set of numbers in a
data set.

6. CONTENT 1.3
MEAN EXAMPLE
 Data Set:
 It is the average 7, 6,4,6,10,8,5,2
 The sum of all numbers
 = the sum of all the = 48
numbers in a set  Divide the sum by the
divided by the total total of the numbers in
number in that data set the data set.
48/8=6
 The mean is 6

7. CONTENT 1.4
MEDIAN:
Data set
• the value in the middle
of the data set. 15, 24,49,8,50
Put them in order from lowest
• half the numbers are to highest
< or = to the median. 8,15,24,49,50
• half the numbers are Pick the middle value
> or = to the median Median=24

8. CONTENT 1.5
Data Set:
3,4,5,5,6,7,8,10
If your data set has an
even amount of
numbers,
Your data set would
have two middle
values.
Take the mean of
these two values to
get the median.
Median=(5+6)=11
11/2=5.5
Median=5.5

9. CONTENT 1.6
 The Mode is the value which
has the greatest frequency in the
data set.
Example Data Set:
3,4,5,5,6,7,8,10
 The Mode of this Data Set is:
5

10. CONTENT 1.7
 If there are no repeating
numbers in the data set,
Example:
Data Set: 3,5,7,9,12,15
 There is no mode.

11. CONTENT 1.8
Press for Review

12. WHAT IS THE MEAN OF THE FOLLOWING DATA
SET: 3,5,7,9,12,15?
a) 8
b) 7
c) 8.5
d) 5
e) 9

13. WHAT IS THE MEDIAN OF THE FOLLOWING
DATA SET: 24,60,12,48,36?
a) 48
b) 12
c) 30
d) 15
e) 36

14. WHAT IS THE MODE OF THE FOLLOWING DATA
SET: 12, 4,8,12,15,25,18,12?
a) 4
b) 12
c) 36
d) 24
e) 8

15. WHAT IS THE MEDIAN OF THE FOLLOWING
DATA SET: 4, 8,10,12,15,20
a) 10
b) 12
c) 22
d) 11
e) 15

16. WHAT IS THE MODE OF THE FOLLOWING DATA
SET: 8,12,15,13,16,19,20?
a) There is no Mode.
b) 13
c) 28
d) 14
e) 20

17. YOUR RIGHT! WAY TO GO!

18. NOT QUITE! TRY AGAIN!