The predicted values were computed by using the line of best fit, y = 3. 2x 2. A 4-column table with 4 rows. The first column is labeled x with entries 1, 2, 3, 4. The second column is labeled given with entries 16. 1, 7. 4, 11, 15. The third column is labeled predicted with entries 5. 2, 8. 4, 11. 6, 14. 8. The fourth column is labeled residual with entries a, b, c, d. What are the residual values needed to complete the chart? a = b = c = d =.