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A sample of 3 students who study 2, 5 and 6 hours per day obtained, at...

A sample of 3 students who study 2, 5 and 6 hours per day obtained, at the end of the year, GPAs of 6, 9 and 8 respectively. Using the method presented in class find the equation of the least-squares lines. Do your calculations on a sheet of paper to be uploaded at the end of the exam. Write the equation in the response box below. You can write it in words, e.g. 'yhat = ...'

What is the sample correlation between GPA and hours of study?

What is the predicted grade of a student who studies 6 hours a day?

Math   Statistics-And-Probability   
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