Welcome back from Fall Break. A week has gone by since, but it was spent mostly on AIMS. So far since we came back we learned about a number called "Standard Deviation". This number tells us how much a set of data varies from average in the given set. We analyzed several football teams, finding that Arizona teams are extremely inconsistent. Now this week, using that same standard deviation number we are assembling our own normal distributions (bell curves). Remember, the key values are 68%, 95% and 99%. Tomorrow we are going to move on to figuring out numbers that are in between those standard deviations. We will be applying something called z-scores. It's exciting to see you all excel at this, it's a tough topic but I know you can do it.