6. The Canadian Medical Association authorizes the use of two tests for a particular antibody known to aggressively fight off cancer in the human body. Test A gives the correct result 83% of the time. Test B gives the correct result 87% of the time. If a cancer patient is given both tests, find the probability that: a) Neither test gives the correct result. b) That both tests give the correct result c) At least one of the two tests gives the correct result. d) At least one of the tests give an incorrect result.