In the following data, x x is the average number of hours the student spent working on math each week and y y is the final grade in a math class. hours/week x Grade y 8 53.2 8 62.2 8 60.2 9 56.6 9 76.6 10 67 11 68.4 13 70.2 13 73.2 13 75.2 The line of best fit is y = 2.58 ⋅ x + 39.99 y = 2.58 ⋅ x + 39.99 . What is the predicted value for the final grade when a student spends an average of 10 hours each week on math? Grade = Round to 1 decimal place.
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