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March 1, 2015

March 1, 2015

Posted by **Ali** on Wednesday, March 31, 2010 at 6:53pm.

- Probability/Stas -
**kate**, Wednesday, March 31, 2010 at 6:56pm10

20

- Probability/Stas -
**kate**, Wednesday, March 31, 2010 at 7:20pmdoes that mean sixty of them

- Probability/Stat (correction) -
**PsyDAG**, Thursday, April 1, 2010 at 11:47am1/5 = 4/20, so 4 tiles are red.

1/2 or 10 are not yellow, so they are either red or green. Since 4 are red, the remaining 6 are green.

Probability of NOT green = 1 - 6/20 = ?

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