Your job is to see if there is a relationship between price and sales for coffee.

Coffee sales:

Price: 1.50 2.20 2.70 2.50 2.90 2.00 1.60 2.10 3.00 1.80

Sales: 96 79 70 73 64 85 94 83 63 91

Complete the attached table.

1. Identify the actual number of sales at each price.
2. Use the line of best fit to calculate the predicted sales at each price.
3. Calculate the residuals at each price by subtracting predicted sales from actual sales.