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on surveying 200 individuals, apple found that 80% of people that own a Macbook also have an iphone. About 40% of computer owners have a

on surveying 200 individuals, apple found that 80% of people that own a Macbook also have an iphone. About 40% of computer owners have a Macbook and 60% of smartphone owners have an iphone. What is the probability that a random iPhone owner will not have a MacBook? Please show your work.

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