February 24, 2017

Homework Help: probability and counting

Posted by Hannah on Wednesday, April 13, 2011 at 5:37pm.

(1 pt) A box contains 25 yellow, 28 green and 38 red jelly beans.
If 13 jelly beans are selected at random, what is the probability that:
a) 5 are yellow?
b) 5 are yellow and 7 are green?
c) At least one is yellow?

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