Provide an appropriate response. For women at Durham College, times to run the 400 meters are normally distributed. Which of the following are the most plausible values for the mean and standard deviation?
A. Mean = 77 sec, standard deviation = 16 sec
B. Mean = 77 sec, standard deviation = 2.1 sec
C. Mean = 77 sec, standard deviation = 20 sec
D. Mean = 77 sec, standard deviation = 9.1 sec
Answer: D
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A. 
+ 
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B. 
+ 
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C. 
+ 
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D. 
+ 
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B. 10
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