lfugao Corp. is making estimates-of its sales volume for 19B. Per past experience, sales volume exceeding a minimum of 80,000 units varies at the rate of six units for every other tourist. The estimated number of tourists for 19B is 300,000. Unit selling price is P90.

Require:

a. Regression equation for sales volume.

b. Estimated sales volume for 19B.

c. Estimated peso sales for 19B.