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3. Given the following GPA for 4 students: 2, 3, 3, 4. Age of students are: 10, 11, 12, 15. There are 10,000 total students.

3. Given the following GPA for 4 students: 2, 3, 3, 4. Age of students are: 10, 11, 12, 15. There are 10,000 total students. Average GPA: Unknown, Standard Deviation of GPA: 0.02 and it's Normal. a. Find the mean and standard deviation for GPA. (10 points) b. Calculate a 95% confidence interval for the populations mean GPA. (5 points) C. Use Correlation formula to find r between GPA and Age. (10 points) d. Find Regression Line Equation. (5 points) e. If a student's age is 13, what is the corresponding GPA? (5 points) 4. Find P( -1.2

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