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34. What should I buy? A study conducted by the Pew Research Center reported that 58% of cell phone owners used their phones inside a

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34. What should I buy? A study conducted by the Pew Research Center reported that 58% of cell phone owners used their phones inside a store for guidance on purchasing decisions. A sample of 15 cell phone owners is studied. a. What is the probability that six or more of them used their phones for guidance on

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