On any question: .On a six-question multiple-choice test, there are five possible answers
for each question. Only one of these answers is correct.
If a student guesses randomly and independently, find the probability:
a) being correct only on questions 1 and 4
We want: .right-wrong-wrong-right-wrong-wrong
The probability is: .
There are: . ways to choose two questions.b) being correct on two questions only