Ignore the answer that is already bubbled in.

1) A company makes energy-efficient attic insulation. A salesman for the company wants to identify customers who are likely to purchase his product. He believes that homeowners with newer roofs are more likely to purchase his product. To test his theory, he has decided to look through the past records of his company's sales agents. The agents find customers by ringing doorbells and discussing the company's products with homeowners. The salesman sorts the sales records into three groups, according to the homeowner's type of roof. His first group is homeowners with a 30-year roof in good condition. His second group is homeowners with a 20-year roof in good condition. His third group includes any homeowner in need of a new roof. Here is the table he created: In Need of a New 30- Year Roof 20 - Year Roof Total Roof Purchased 8 5 4 17 Insulation Did Not Make a 42 77 94 213 Purchase Total 50 82 98 230 Use the table to answer the following questions. The salesman knows that you can give him good advice. He has given you all of his data. He asks you which homeowners you think are most likely to purchase insulation. Compare the homeowners who would purchase insulation using probability. After doing the conditional probabilities for each roof category, what would you tell him? O The salesman should concentrate on homeowners with a 30-year roof, since these customers are more likely to make a purchase. he salesman should concentrate on homeowners with a 20-year roof, since these customers are more likely to make a purchase. he salesman should concentrate on homeowners with in need of a new roof, since these customers are more likely to make a purchase