Fast male cross-country runners have 5K times that are approximately Normal as shown in the image. 15 15.5 16 16.5 17 5K time for male cross-country runners (minutes) 17.5 18 What is the mean and standard deviation of this distribution? Mean 18 minutes Standard deviation = 3 minutes Mean 16.5 minutes Standard deviation = 0.5 minutes Mean 16.5 minutes Standard deviation = 1.5 minutes Mean 15 minutes Standard deviation = 0.5 minutes Mean = 0.5 minutes Standard deviation = 16.5 minutes

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