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  3. a retail shop accepts only cash or checks suppose that...

Question: a retail shop accepts only cash or checks suppose that...

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A retail shop accepts only cash or checks. Suppose that 57% of its customers carry cash, 51% carry checks, and 37% carry both cash and checks what is the probability that a randomly chosen customer at the shop is carrying cash or checks (or both)? Write your answer as a deimal (not as a percentage).
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