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Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them.

 

What is the expected value of the number shown if we add one additional $9$ to the bag?


(All other answers to this question were wrong)

 Jul 23, 2021
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The expected value is 47/11.

 Jul 23, 2021

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