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1.A theater chain has studies its customers to determine how much money they spend of concessions. The study revealed that the spending distribution is approximately
1.A theater chain has studies its customers to determine how much money they spend of concessions. The study revealed that the spending distribution is approximately normally distributed with a mean of $4.11 and a standard deviation of $1.37. What proportion of customers will spend less than $3.00 on concessions?
2.What amount of spending on concessions corresponds to the top 87th percentile?
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