How do you solve part C? and How do you get 140 as the answer? http://i41.tinypic.com/29m7zex.png
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Originally Posted by pauly215 How do you solve part C? and How do you get 140 as the answer? First, I have a impolite question for you: Why did you not type the out so we can easily read it? Now I am going to play the "back-of-the-book' game with you. $\displaystyle 2\dbinom{8}{4}=140$. Now you task is to explain why that works!
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