The Total Number of Hours Worked by a Student, Y $\bar{x}$

Short Answer

The total number of hours worked by a student, y, last week depends on the number of days, x, they worked. Data on twenty-eight students produce the summary statistics
n = 28 $\bar{x}$ = 3.21 $\bar{y}$ = 14.79 S_xx = 2260.714 S_xy = 1969.286 S_yy = 2076.714
Determine the proportion of variation in y that is explained by linear regression. Round your answer to three decimal places.