Find out the definition of mean, how to find it, and why it's useful. To watch this as a video and learn more, visit http://LearnAlgebraFaster.com/ss2/

1. a2 + b2
2x < 8y - 43 = c 2 ax2 +bx +
c = 0
www.LearnAlgebraFaster.com
3 y > |7 x -
2| + 5
2)
m x +b 4)(x
2 + 5 x-
y= f(x) = (x -

2. www.LearnAlgebraFaster.com
The Definition of Mean

3. The Definition of www.LearnAlgebraFaster.com
Mean
In a set of numbers...
Mean - The sum of the numbers divided
by how many numbers there are
This is also referred to as the AVERAGE

4. The Definition of www.LearnAlgebraFaster.com
Mean
When will you deal
with Mean?
Any Set (Group) of Numbers
Statistics
Histograms
Line Plots

5. The Definition of www.LearnAlgebraFaster.com
Mean
Find the Mean:
15, 10, 19, 19, 7, 11, 15, 19, 20, 12, 17,
18
Sum of the numbers
Mean = How many numbers 182
12
Mean = 15.17

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Review:
The Mean is the Average of
the numbers in the set

7. www.LearnAlgebraFaster.com
Review:
The Mean is the Average of
the numbers in the set