Ineed some a student answers all 48 questions on a multiple-choice test by guessing. each question has four possible answers, only one of which is correct. find the probability that the student gets exactly 15 correct answers. use the normal distribution to aproximate the binomial distribution. i used binomcdf(48,.25,15) and get 0.0767 but that isn't one of the choices. the choices are 0.7967 0.0606 0.0823 0.8577,