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Running times for 400 meters are Normally distributed for young men between 18 and 30...

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Running times for 400 meters are Normally distributed for young men between 18 and 30 years of age with a mean of 93 seconds and a standard deviation of 16 seconds How fast does a man have to run to be in the top 1 of runners OA 134 2 seconds OB 55 8 seconds O C 130 2 seconds O D 51 8 seconds

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