### Home > CCG > Chapter 4 > Lesson 4.2.3 > Problem 4-81

4-81.

Eddie told Alfred, *“I’ll bet if I flip three coins I can get exactly two heads.”* Alfred replied, *“I’ll bet I can get exactly two heads if I flip four coins!” *Eddie scoffed, *“Well, so what? That’s easier.” *Alfred argued, *“No, it’s not. It’s harder.”* Who is correct? Show all of your work and be prepared to defend your conclusion.

Make a tree for each case like the one to the right.

Both equal