Question: Each month a brokerage house studies various companies and rates each company's stock as being either "low risk" or "moderated to high risk". In a recent report, the brokerage house summarized its findings about 15 aerospace companies and 25 food retailers in the following table:

Company Type Low Risk Moderate to High Risk

Aerospace Company 6 9

Food Retailer 15 10

If we randomly select one of the total of 40 companies, find:

1. The probability that the company is a food retailer.
2. The probability that the company's stock is "low risk."
3. The probability that the company's stock is "moderate to high risk."
4. The probability that the company is a food retailer and has a stock that is "low risk."
5. The probability that the company is a food retailer or has a stock that is "low risk."

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