1/ Find correlation coefficient for the data set

2/ Find coefficient of determination

3/ Find the equation for regression line (best fit line)

4/ Use the best fit line equation to find answer for the question: If a student spends 7 hours to review for the test, what will be the student's test score?

You can use graphing calculator or EXCEL to do work

test scores: 50, 94.2, 55.2, 83.5, 98.8, 45.3, 81.3, 72, 98.1, 46.7, 54.4, 76.9, 43.1, 57.8, 87.9

Time (hours) spent to review: 4, 8.8, 3.9, 7.2, 8.2, 4, 7.3, 6.1, 9.1, 3, 5, 7.4, 3, 5.1, 7.8