Posted by **Rosa** on Wednesday, February 29, 2012 at 9:24am.

Search results for: Using numbers 1-20 what is probability a randomly chosen number is either an even number or a number greater than 14?

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**PsyDAG**, Wednesday, February 29, 2012 at 11:57am
Even = 10/20

over 14 = 6/20

Since 3 numbers are duplicated (in both categories), that probability needs to be subtracted.

Either-or probability is sum of the individual probabilities.

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**PsyDAG**, Wednesday, February 29, 2012 at 11:59am
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

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