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Normal Distribution Curve/Chart Statistics

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I need to know how to solve this question using the normal distribution curve / chart and how to answer using Excels Fx statistics function

The first statistics exam had a mean of 65 and a standard deviation of 10 points; the second had a mean of 80 and a standard deviation of 5 points. Derrick scored an 80 on both tests. Julie scored a 70 on the first test and a 90 on the second. They both scored 160 points on the two exams, but julie claimed her total is better. Explain.

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The expert examines the normal distribution curve/chart for statistics.

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I have attached an Excel Workbook where the calculations for this problem were completed and a Word document explaining the work.

I need to know how to solve this question using the normal distribution curve / chart and how to answer using Excels Fx statistics function

The first statistics exam had a mean of 65 and a standard deviation of 10 points; the second had a mean of 80 and a standard deviation of 5 points. Derrick scored an 80 on both tests. Julie scored a 70 on the first test and a 90 on the second. They both scored 160 points on the two exams, but Julie claimed her total is better. Explain.

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