3. A brokerage company evaluates and rates the 15 Aerospace companies and 25 food retailers in the following table;

Company type	Low Risk	High Risk
Aerospace companies	6	9
Food retailers	15	10

If a company is selected at random, find the probability that 1) The companys stock is high risk. 2) The companys stock is a food retailer. 3) The companys stock is high risk given that the firm is a retailer. 4) Given that the companys stock is high risk, the firm is a aerospace company. 5) The companys stock is low risk and a food retailer. 6) The companys stock is high risk or a aerospace company.