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May 27, 2016
Posted by **Anonymous** on Sunday, December 4, 2011 at 3:53pm.

- statistics -
**PsyDAG**, Monday, December 5, 2011 at 2:22pmEven numbers are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.

P(even) = 10/21

Multiples of 3 are 3,**6,**9,**12,**15,**18**, 21.

Probability of either/or = sum of individual probabilities - common probabilities.