suppose that the times required for a pizza boy to deliver a meal to costumer homes are normally distributed with mean 32 minutes and standard deviation 9 minutes. (30 points)
1) What is the probability that a randomly selected order will take at least 34 minutes?
2) What is the probability that a randomly selected order will take at most 50 minutes?
3) What is the probability that a randomly selected order will take between 26 minutes and 56 minutes?
4) 20 % of the orders will require more than what time?
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