Dont be so MEAN

1
Dont be so MEAN!

• Words spoken by an AVERAGE man.

2
Average

• A number that typifies a set of numbers of which
  it is a function.

3
Mean

• The average value of a set of numbers.

4
AverageMean

• The average is the mean.
• The mean is the average.

5
Lets try it this way.

• The average (or mean) of data is computed by
• 1. Adding all the data together (sum).
• 2. Dividing that sum by the number of data.

5 10 2 7 24
24 4 6
So the average number of rocks collected was 6.
6
Heres another example.
3 2 10 6 4 25
25 5 5
So the average number of fish owned by members of
the Aqua club was 5.
7
You can find the average of your test grades.
90 85 82 100 100 86 543
543 6 90.5
So the average of Sams spelling grades is 90.5
which is rounded up to 91 which is an A.
8
Find the average of this data.
The average rainfall during these three weeks was
4 inches.
9
Find the average of this data.
The average number of CDs owned by the members of
the Hip Hop Clubs members is 20.
10
Find the average of this data.
There is an average of 15 of each genre in the
classroom library.
11
Find the average of this data.
Mr. Postman has an average of 9.5 of each kind of
tie.
12
Last one!
These states have an average of 9.6 cities with a
population of over 100,000.