### Mean Absolute Deviation (MAD) is how far, on average, all data values are from the middle. **To find the MAD of the you can follow 3 easy steps:**

- Find the mean of the values.
- Find the distance of each value from that mean (subtract the mean from each value, ignore minus signs which is also the absolute value)
- Then find the mean of those distances

#### For this Math Mini Spark, you’ll be finding the MAD on a spreadsheet.

**Spark your math thinking!**

- Set up your math mini spark recording page: #85 Spreadsheets and MAD
- Calculate the MAD of this data set: 3, 6, 6, 7, 8, 11, 15, 16
- Find the mean of the values.
- Find the distance of each value from that mean (subtract the mean from each value, ignore minus signs which is also the absolute value)
- Then find the mean of those distances

- Look over this post from Math is Fun that outlines the steps. Make sure that each of the steps you did were correct.
*Make a Copy*- Watch the video and complete the steps shown in the video on your own spreadsheet.
**Video: https://youtu.be/nGG2xq1COwE** - Share your math mini spark recording page with your teacher/EY coordinator.

**NOTE: ** This mini-spark can be used as 1 spreadsheet lesson for the Spreadsheet Superstar Badge.