a group of 60 students were asked whether they watch tv patrol or 24 Oras or both programs. Thirty eight of these students watch tv patrol and 32 watch 24 Oras. a. how many watch tv patrol only? b. how many watch 24 Oras only? c. how many both news programs?
Solution: Let A = set of students who watch tv patrol
B = set of students who watch 24 Oras
A - B be the set of students who watch tv patrol and not 24 Oras
B - A be the set of students who watch 24 Oras not tv patrol
A ∩ B be the set of students who watch both programs.
