One of your teachers tells your class that skip-ping class often can lead to dire consequences. He says that data from his previous classes show that students who often skip class have twice the risk of failing compared to students who attend regularly, even though class attendance and participation are not part of the grade.
a. What term from this chapter applies to the phrase “twice the risk” (for example, odds ratio, increased risk, etc.)?
b. Give two reasons why the information pro-vided by the teacher does not imply that if you skip class regularly you will probably fail the class.