cassidyhead27
cassidyhead27
24.06.2019 • 
Mathematics

Hurry ! 200 senior high students were asked how long they had to wait in the cafeteria line for lunch. their responses were found to be normally distributed, with a mean of 15 minutes and a standard deviation of 3.5 minutes. how many students would you expect to wait more than 11.5 minutes?

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