MAD.

today we learned our last concept of our statistics unit: MAD (mean absolute deviation).  it's kind of a long process, but pretty easy.
steps:
1. find the mean (average) of the data set.
2. find the deviation of each of the data values from the mean.
3. calculate the mean (average) of the deviations.


homework: notetaking guidebook p. 386 #11-17 and #20


***parent teacher conferences are tomorrow!  hope to see you all then.  please e-mail me if you plan on coming so we can set up a time.  thanks!***