In a class of 27 students, 18 are female and 8 have an A in the class. There are 2 students who are female and have an A in the class. What is the probability
that a student chosen randomly from the class has an A?

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?