Question 1208670
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Suppose we have a bag with 10 slips of paper in it. Eight slips have a 7 on them and the other two have a 9 on them.
How many 2's do we have to add to make the expected value equal to 10? 
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Whichever number of "a 2" you add, you will never get the expected value equal to 10.    <U>ANSWER</U>


It always will be less than 9.
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Solved and answered.


One milligram of common sense is required.