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The time spent on an exam by a class of 100 students is normally distributed with...

The time spent on an exam by a class of 100 students is normally distributed with a mean of 50 minutes and a standard deviation of 8 minutes. Using the percentage approximations for the normal curve, what is the percentage of the population of all exam takers that would spend between 50 to 62 minutes on the exam? (Use of Z table is necessary)

A. 41.92%

B. 43.32%

C. 8.08%

D. 6.68%

Math   Statistics-And-Probability   
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Answer #1

B IS CORRECT OPTION.

If there is any understanding problem regarding this please feel free to ask any doubt in comment box. Thank you.

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