1. The CDC has claimed that gonorrhea rates and beer taxes are associated. What sort of association did they suggest? What did Sen and Luong have to say about the possibility to cause and effect in this example?
2. Explain the position of Digital Bits Skeptic with respect to weight gain and diet soda
3. Explain how the work by researchers at the UT Health Science Center at San Diego counters the argument of Digital Bits Skeptic
4. Give an example of 2 variables that are clearly associated but likely have no causal relationship at all
5. Give an example of 2 variables that are clearly associated and likely have a casual relationship