I'm currently stuck on this question: A multiple choice test consists of 8 questions each with 4 choices. A student guesses the answers by choosing an answer at random. We can't use binomcdf or anything like that to find the answer
a) Compute the probability that the student answers 2 or more correctly.
b) If the student is able to eliminate one answer in each question as incorrect and chooses randomly from the other three choices, what is the probability the student answers 2 or more correctly?