At one high school, students can run the 100-yard dash in a mean of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Rounding to the nearest tenth of a percent as necessary, find the percent of times that are:Greater than 13.4 seconds
A. 97.5%
B. 98%
C. 84%
D. 2.5%
Answer: A
Mathematics
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A. 
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C. 
D. 
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