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Problem 31

Many couples want to have both a boy and a girl. …


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Problem 30

A technology store holds a contest to attract shoppers. Once an hour, someone at checkout is chosen at random to play in the contest. Here’s how it works: An ace and four other cards are shuffled and placed face down on a table. The customer gets to turn over cards one at a time, looking for the ace. The person wins $\$ 100$ of store credit if the ace is the first card, $\$ 50$ if it is the second card, and $\$ 20, \$ 10,$ or $\$ 5$ if it is the third, fourth, or last card chosen. What is the average dollar amount of store credit given away in the contest? Estimate with a simulation.


$\$ 291$



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