Question

There are 1000 students in the senior class at a certain high school. The high school offers two AP math /sta classes to seniors. The roster of the AP calc class shows 95 people, the AP stats class shows 86 people. There are 43 overachieving seniors on both rosters. What is the probability that a randomly selected senior is in exactly one of the two classes (but not both)?

Answer 1

100 not thousand right?

Answer 2

you can use set theory if i'm not mistaken

Answer 3

wait no i misread the question