Take a look at the infographic. What do you see? What do you think? What do you wonder?

Image from West Coast Shaving. Clicking on this image will show it expandable in a new window. Just click a second time on the image to expand it.
In this lesson students compare NFL QB rating of quarterbacks with and without facial hair. This task can be used to explore a number of math ideas such as sampling, causation versus correlation, misleading data, measures of central tendency, variability and data visualization. Questions to consider:
- Is this enough data to definitively say that facial hair improves quarterback performance?
- How might we collect a stronger set of data?
- Does facial hair cause improved quarterback performance or is it a correlation?
- How can we collect data to show that facial hair reduces quarterback performance?
- Which measure of central tendency best represents the data?
- What type of graph or plot can be used to display the data?
The activity: Should_Quarterbacks_grow_facial_hair.pdf
For members we have an editable Word docx, an Excel sheet of the data and graph, and solutions.
Should_Quarterbacks_grow_facial_hair.docx Facial_Hair_Excel File.xlsx Should_Quarterbacks_grow_facial_hair__Solutions.pdf
CCSS: 6.SP.1, 6.SP.3, 6.SP.4, 7.SP.1, 7.SP.2, 7.SP.3, 7.SP.4, HSS.ID.A.2, HSS.ID.C.9