Buzz-off Company believes they have come up with a product that will prevent mosquitoes from biting you. You and a friend volunteer to test their product for the weekend, where you sprayed on the new repellent and your friend did not wear any at all. You both did the same activities at the same time all weekend, but you came back with 27 bites, whereas your friend came back with 13. Who was the control group?

What is the independent variable?

What is the dependent variable?

What are the controlled variables?
What should your conclusion be?

If Buzz-off is really supposed to work, what may have caused these results to occur?