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There are four $20 bills, six $10 bills, seven $5 bills, and three $1 bills in your wallet. You select one bill at random. What is the expected value for this experiment?
$

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lwittenbornmain

Answer:

20% it will be a $20 bill

30% it will be a $10 bill

35% it will be a $5 bill

15% it will be a $1 bill

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