Suppose that for a typical FedEx package delivery, the cost of the shipment is a function of the weight of the package. You find out that the regression equation for this relationship is (cost of delivery) = 3.46*(weight) + 7.258. Interpret the slope. O1) When cost of delivery increases by 1 dollar, weight increases by 7.258 pounds. ()2) When cost of delivery increases by 1 dollar, weight increases by 3.46 pounds. 3) When weight increases by 1 pound, cost of delivery increases by 3.46 dollars. O 4) When weight increases by 1 pound, cost of delivery increases by 7.258 dollars. O 5) We are not given the dataset, so we cannot make an interpretation