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12 A physical education teacher has observed that the length of time it takes high school students to complete the mile run is bell-shaped with

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A physical education teacher has observed that the length of time it takes high school students to complete the mile run is bell-shaped with a mean of =450 seconds and a standard deviation of a-50 seconds. Use the Empirical rule (68-95-99.7 rule) to answer the following question. Approximately what percentage of students complete the mile run in more than than 600+seconds?% (Round to two decimal places if necessary.)

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