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January 25, 2015

January 25, 2015

Posted by **Juan** on Monday, March 28, 2011 at 12:13am.

- Advanced Algebra -
**MathMate**, Monday, March 28, 2011 at 7:00amNumber of ways

C(5,2) [five choose 2]

=5!/(2!(5-2)!

=10

Probability of choosing both

= 1 / 10

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