Answer all questions with explanation

According to the college's registrar's office, 35% of nursing students enrolled in an introductory anatomy class this semester are freshman,30% are sophomores, 10% are juniors, and 25% are seniors. You want to determine the probability that a random sample of five students enrolled in introductory anatomy this semester, exactly two are freshman. a) Describe a trial. b) Can we model a trial as having only two outcomes? If so what is success? c) What is failure? Your Answer: d) What is the probability of success