Posted by **Reta** on Wednesday, February 10, 2010 at 2:27pm.

A student guesses on every ??? of a multiple choice test that has 9 quetions, each with 3 possible answers. what's the probability the student will get at least 7 of the questions right?

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March 24, 2017
Posted by **Reta** on Wednesday, February 10, 2010 at 2:27pm.

A student guesses on every ??? of a multiple choice test that has 9 quetions, each with 3 possible answers. what's the probability the student will get at least 7 of the questions right?

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