Answer:
Their expected gain per package is $1.9115
Explanation:
Expected gain per package
= (what it gets if delivery is made)(probability delivery is made) + (what it loses if delivery is not made)(probability delivery is not made)
= (17.95 - 15.50)*(0.97) + (-15.50)*(0.03)
= 2.3765 - 0.465
= 1.9115
Therefore, Their expected gain per package is $1.9115