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As reported by a recent survey the fast food restaurant with the best drive through...

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As reported by a recent survey the fast food restaurant with the best drive through time had a mean time spent in the drive through of 63 8 seconds Assuming drive through times are normally distributed with 2 9 seconds complete parts a through d below a What is the probability that a randomly selected car will get through the drive through in less than 60 1 seconds The probability is Round to four decimal places as needed b What is the probability that a randomly selected car will spend more than 70seconds in the drive through The probability is Round to four decimal places as needed c What proportion of cars spend between 60 1 and 70seconds in the drive through Round to four decimal places as needed

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