Multiple-choice questions each have 5 possible answers, one of which is correct. Assume that you guess the answers to 3 such questions.

Use the multiplication rule to find the probability that the first two guesses are wrong and the third is correct. That is, find $\displaystyle {P}{\left({W}{W}{C}\right)}$, where C denotes a correct answer and W denotes a wrong answer.
(round answer to 4 decimal places)
$\displaystyle {P}{\left({W}{W}{C}\right)}=$

What is the probability of getting exactly one correct answer when 3 guesses are made?
(round answer to 4 decimal places)
P(exactly one correct answer) =