What should I buy? A study conducted by the Pew Research Center reported that 60% of customers used their phones inside a store for guidance on purchasing decisions. A sample of 13 customers is studied. Round the answers to at least four decimal places. Part: 0/ 4 Rr Part 1 of 4 ] = (2) What is the probability that five or more of them used their phones for guidance on purchasing decisions? The probability that five or more of them used their phones for guidance on purchasing decisions is D Part: 1 / 4 Part 2 of 4 (b) What is the probability that fewer than nine of them used their phones for guidance on purchasing decisions? The probability that fewer than nine of them used their phones for guidance on purchasing decisions is D