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The mean running time of a 5 km race is 31.25 minutes. The standard deviation is 6 minutes. If the times are normally distributed, between

The mean running time of a 5 km race is 31.25 minutes. The standard deviation is 6 minutes. If the times are normally distributed, between what two times do 95% of the observations lie? Choose all that apply.

A.

Between 25.25 and 37.25

B.

Between 19.25 and 43.25 minutes

C.

Between 13.25 and 49.25

D.

Between 29.25 and 33.25

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