1. A management professor gives a quiz containing 15 Trueialse questions. Past data suggests the probability to be 0.78 that a student chooses the correct answer for any given question. What is the probability that a student selected at random will answer at least 13 questions correctly? Assume binomial distribution applies. a. 0.2457 b. 0.3269 c. 0.5726 d. 0.6731 2). [The probability that an article in Big Brand magazine has a typographical error is 0.05. The next edition has 18 articles. What is the probability that the magazine (all 18 articles) will have exactly one typographical error? Assume binomial distribution. a. 0 b. 0.2972 c. 0.3763 d. 1.00