Calculating the Mean
What is the mean of the data set?
© 5
Follow the steps below to find the mean for
the set of data. Use the work shown to help
you.
Data set: 6,5, 8, 5, 9, 6, 7,5, 12
First add the values.
6 +5+ 8 +5+ 9 + 6 + 7 + 5 + 12 =
7
63
Then divide by the number of values.
There are 9 values.

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Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.