At one high school girls can run the 100 yard dash in an average of 15 2 seconds with a standard deviation of 0 9 second The

Question

At one high school girls can run the 100 yard dash in an average of 15 2 seconds with a standard deviation of 0 9 second The times are very closely approximated by a normal curve Find the percent of times that are 18 Between 14 3 and 16 1 seconds A 47 5 B 50 C 68 D 34

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