Wednesday
December 17, 2014

Homework Help: Math

Posted by Carrie on Sunday, March 7, 2010 at 12:59am.

A spinner has regions numbered 1 through 21. What is the probability that the spinner will stop on an even number or a multiple of 3?

Okay so I am lost. I understand that the probability of an event is

the # of ways an event can occur over the total # of possible outcomes.

I need some explaining done. Please

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