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Sam Walton has summarized the transactions of 80 customers at a hardware store on a particular day, as illustrated below. Let's assume he randomly chose
Sam Walton has summarized the transactions of 80 customers at a hardware store on a particular day, as illustrated below. Let's assume he randomly chose one of the 80 customers. Number of Customers Hammer? Yes No Total Nails? Yes No 3 3 1 73 6 74 Total 4 76 80 (a) If the selected customer bought a hammer, what is the probability that he or she also bought a box of nails
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