In a certain Algebra 2 class of 28 students, 14 of them play basketball and 7 of them play baseball. There are 2 students who play both sports. What is the probability that a student chosen randomly from the class plays basketball or baseball?
number playing(Bask OR Base) = 14 + 7 - 2 = 19
(assuming that everybody plays at least one sport).
prob(your event) = 19/28