There is this one part of a problem I'm having trouble setting up...
For this, I let if answer is correct, and if the answer is incorrect.
On a six-question multiple-choice test there are five possible answers for each question, of which one is correct (C) and four are incorrect (I). If a student guesses randomly and independently, find the probability of
I'm not quite sure on how to set this part up, any hints would be appreciated.
(a) Being correct only on questions 1 and 4 (i.e. C, I, I, C, I, I)
I think this would be ...but I'm not quite sure.
(b) Being correct on two questions
I'd appreciate any input! (Nod)