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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
4.19 Each month a brokerage house studies various companies and rates each company’s stock as being either “low risk” or “moderate 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:

If we randomly select one of the total of 40 companies, find
a The probability that the company’s stock is moderate to high risk given that the firm is an aerospace company.
b The probability that the company’s stock is moderate to high risk given that the firm is a food retailer.
c Determine if the events the firm is a food retailer and the firm’s stock is low risk are independent. Explain.
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