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January 28, 2015

January 28, 2015

Posted by **Lilly** on Friday, June 6, 2014 at 8:05pm.

P(the first marble is purple and the second marble is not yellow)

- Math -
**Ms. Sue**, Friday, June 6, 2014 at 8:11pmDo you have a typo in this post?

- Math -
**Damon**, Friday, June 6, 2014 at 8:18pm19 marbles

p(first is purple) = 2/19

now 18 marbles,

what is p(yellow) first

p(yellow) = 5/18

so

p(NOT yellow) = 13/18

p purple then not yellow) = 2/19 * 13/18

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