Question 604646
You have a 5-question multiple-choice test. Each question has four choices. You don’t know any of the answers. What is the experimental probability that you will guess exactly three out of five questions correctly?
---------
Binomial Problem with n = 5 and p(correct) = 1/4
----
P(x = 3) = 5C3(1/4)^3*(3/4)^2 = binompdf(5,1/4,3) = 0.0879
===============================
Cheers,
Stan H.