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A sample of university students has an average GPA of 2.78 with a standard deviation of 0.78. If GPA is normally distributed, find the area

A sample of university students has an average GPA of 2.78 with a standard deviation of 0.78. If GPA is normally distributed, find the area of the students who have the following GPA. Area for Z-score less than 2.0 is? Write answer as a percentage

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