please explain

Match each scenario below to the type of distribution that should be applied. Scenarios: - V An email user gets, on average, 20 emails per day. What is the probability of getting more than 750 emails in a year? - Suppose 7% of a university's student body are Chemistry majors. What is the probability that 30 students are interviewed before a Chemistry major is found? - Text message users receive or send an average of 41.5 text messages per day. What is the probability that a text message user receives or sends two messages per hour? - A student guesses at a 30 question multiple-choice test. If each question has 5 possible answers, how many answers must be guessed until one is correct? - A student guesses at a 30 question multiple-choice test. What is the probability that he will guess 17 of them correctly? - The graduation rate of a particular university is 56%. Suppose 200 seniors were sampled. What is the probability that 75 of them graduate? Types of discrete distributions: a. Binomial Distribution b. Geometric Distribtuion c. Poisson Distribution