A survey shows that 63% of the Americans like cheese whereas 76% like apples. If x % of the Americans like both cheese and apples, then (1) x =... View Article
Solution: (3) % of families that own a cell phone = 25% % of families that own a scooter = 15% % of families that own neither a cell phone nor... View Article
Solution: (4) S = {1, 2, 3, 4} According to the definition of disjoint sets, if there exist two sets A and B, A ⋂ B = ɸ. Every element of S... View Article