To introduce her class to binomial distributions, Mrs. Desai gives a 10-item, multiple- choice quiz. The catch is, students must simply guess an answer (A through E) for each question. Mrs. Desai uses her computer's random number generator to produce the an- wer key, so that each possible answer has an equal chance to be chosen. Patti is one of the tudents in this class. Let X = the number of Patti's correct guesses. 1. Show that X is a binomial random variable. 2. Find P(X = 3). Explain what this result means. 3. To get a passing score on the quiz, a student must guess correctly at least 6 times. Vould you be surprised if Patti earned a passing score? Compute an appropriate probability to support your answer. %3D