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October 21, 2014

October 21, 2014

Posted by **Tracy** on Friday, February 8, 2013 at 3:44pm.

- Elmentary Math for Teachers II -
**Steve**, Friday, February 8, 2013 at 4:04pm1/7 of the 100 questions, or 14-15 times.

- Elmentary Math for Teachers II -
**Tracy**, Friday, February 8, 2013 at 4:31pmFrom a set of eight marbles, five red and three white, we choose one at random. What are the odds in favor of choosing a red marble?

- Elmentary Math for Teachers II -
**Steve**, Friday, February 8, 2013 at 4:41pmsame kind of idea. Think of a spinner which is 5/8 red and 3/8 white. If you spin it, you will likely hit red 5/8 of the time.

Looking at the marbles, 5 of the 8 are red, so if you grab one, it will probably be red (5/8 of the time)

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