Use the binomial distribution to determine the probability that a student will get at least 8 out of 10 questions on a ten question multiple choice test correct by just guessing if each question has four (4) choices. Assume that the student randomly guesses any of the four choices with a .25 chance of guessing the CORRECT choice.
p = 0.25, q = 1 - p = 0.75, n = 10
P(r correct answers out ...
Neat and step-wise solution is provided.