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Unformatted text preview: spread. The deviations effectively cancel each other out. This reflects the fact that the new mean of our recentered data set is 0. For this and for other theoretical reasons, we square the deviations before taking an average. What if we were to take the absolute values of the deviations before taking an average? The result would be the mean absolute deviation (MAD), which is discussed on pp.102-103 of Triola . Note 3 on Rounding: We were fortunate that exact values were easily written in the table. See Notes 3.02 for a reminder of our rounding rules for Chapter 3 ....
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This note was uploaded on 12/29/2011 for the course MATH 119 taught by Professor Kim during the Fall '09 term at SUNY Stony Brook.
- Fall '09