Q4 :You need to hire one contractor. You are leaning toward one who has an 80% chance of delivering in one month with acost of $5,000, and a 20% chance of delivering in two months with a cost of $10,000. Another contractor has a 90%chance of delivering in one month with a cost of $6,000, and a 10% chance of delivering in two months with a cost of$12,000.What technique would you use to select the contractor?