# math

posted by
**Emily** on
.

I have no idea where to start!

*A quick quiz consists of 3 multiple choice problems, each of which has 4 answers, only one of which is correct. If you make random guesses on all 3 problems,

(a) What is the probability that all 3 of your answers are incorrect?

(b) What is the probability that all 3 of your answers are correct?