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At the university's restaurant students spend for their lunch on average ( 7.50 with a standard deviation of E 1.50. Assume these amounts of money

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At the university's restaurant students spend for their lunch on average ( 7.50 with a standard deviation of E 1.50. Assume these amounts of money are normally distributed. a. What percentage of students spend more than E 8.00? b. 10% of students spend more than E A. Find A. c. A class of 18 students enter the restaurant. Find the probability that they spend in total no more than E 142

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