Slide 1
Mean, Median, Mode & Range
By Mr. Clutter
VMS Library
2007-2008
Slide 2
Sum – the answer to an addition problem.
Addend – the numbers you added together to get the sum.
6 + 9 = 15
Slide 3
Mean
Means
Average
Slide 4
Definition
Mean – the average of a group of numbers.
2, 5, 2, 1, 5
Mean = 3
Slide 5
Mean is found by evening out the numbers
2, 5, 2, 1, 5
Slide 6
Mean is found by evening out the numbers
2, 5, 2, 1, 5
Slide 7
Mean is found by evening out the numbers
2, 5, 2, 1, 5
mean = 3
Slide 8
How to Find the Mean of a Group of Numbers
Step 1 – Add all the numbers.
8, 10, 12, 18, 22, 26
8+10+12+18+22+26 = 96
Slide 9
How to Find the Mean of a Group of Numbers
Step 2 – Divide the sum by the number of addends.
8, 10, 12, 18, 22, 26
8+10+12+18+22+26 = 96
How many addends are there?
Slide 10
How to Find the Mean of a Group of Numbers
Step 2 – Divide the sum by the number of addends.
6)
96
sum
# of addends
1
6
3
6
6
6
3
Slide 11
How to Find the Mean of a Group of Numbers
The mean or average of these numbers is 16.
8, 10, 12, 18, 22, 26
Slide 12
What is the mean of these numbers?
7, 10, 16
11
Slide 13
What is the mean of these numbers?
2, 9, 14, 27
13
Slide 14
What is the mean of these numbers?
1, 2, 7, 11, 19
8
Slide 15
What is the mean of these numbers?
26, 33, 41, 52
38
Slide 16