The Time for a Professor to Grade a Homework in Statistics

question 54

Multiple Choice

The time for a professor to grade a homework in statistics is normally distributed with a mean of 12.6 minutes and a standard deviation of 2.5 minutes. What is the probability that randomly selected homework will require more than 12 minutes to grade?

• A) 0.8023
• B) 0.5948
• C) 0.6664
• D) 0.5040

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