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July 28, 2015

Homework Help: math

Posted by Emily on Sunday, August 16, 2009 at 1:43pm.

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?

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