Outliers

Today we continued our study of mean, median, and mode but with the addition of outliers. We examined how outliers affect each of the measurements. One measurement is typically affected most by an outlier and the slides below show how. Read on to find out as Block 1 teaches the concept! 

Line graphs in the real world...

Here is a very relevant way that graphs and data are used on a daily basis. This line graph is from The New York Times (Dec. 16, 2008) online article that discusses the "slow" increase in prices of oil per barrel and the steep decline that occurred in a much shorter time.


See if you can identify the approximate price of oil in 2001 compared to late 2007 and then compared to now. Leave a comment on your findings!

















source: nytimes.com

Mean, Median, Mode and Range

Today in class we continued Chapter 6 with lesson 6-2. This lesson covered mean, median, mode (measures of central tendency), and range (the difference between the greatest and least values in a set of data). 

The students, as well as myself, are still learning how to use the AirLiner so things may not be perfectly clear, but hopefully you can get the idea of how we solved each problem.

Here are a few samples of student work using these measurements: