![tmp14E9.tmp_tcm20-949158[1]](http://www.makingfaircomparisons.us/wp-content/uploads/2012/04/tmp14E9.tmp_tcm20-9491581-150x150.jpg)
The following graph is from Architect Magazine. The caption reads: “The construction boom of the 2000s often cited as the reason for the boom in housing prices doesn’t break precedent—or break records. At a time when U.S. population growth was slower, the 1970s saw two housing booms that produced more housing starts than the 2000s. The high [...]
We are interested in how music purchasing behavior has shifted over the recent past. What are the strengths and weaknesses of each graph in helping us understand that? Make sure to specify what each graph controls for. From Jailbreaking the Degree: From Evolver.fm:
![HE_Nutrition-Information_s4x3_lead[1]](http://www.makingfaircomparisons.us/wp-content/uploads/2012/07/HE_Nutrition-Information_s4x3_lead1-300x225.jpg)
After nutritional labeling went into effect in New York City, a large sample of people were polled about how the label affected their behavior — 27% reported the new labels influenced their behavior, and 10% of people reported purchasing fewer calories as a result. However, when researchers looked at the average amount of calories purchased [...]