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(4pt) The time needed to complete a final examination in college in the United States is...

  1. (4pt) The time needed to complete a final examination in college in the United States is normally distributed with a mean of 90 minutes and standard deviation of 10 minutes.
    1. (2pt) What is the probability of completing a final exam in more than 100 minutes?

Answer:

  1. (2pt) What is the probability of finishing a final examination between 60 to 120 minutes?

Answer:

Math   Statistics-And-Probability   
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