The Fortune 500 includes the top 20 U.S. companies by revenue. Walmart is number one followed by
Question:
The Fortune 500 includes the top 20 U.S. companies by revenue. Walmart is number one followed by Exxon Mobil and Berkshire Hathaway. Of the 20 companies on the list, 5 are in some type of heathcare- or pharmaceutical-related business. Suppose 3 firms are randomly selected.
a. What is the probability that none of the firms is in some type of healthcare- or pharmaceutical-related business?
b. What is the probability that all 3 of the firms are in some type of healthcare- or pharmaceutical-related business?
c. What is the probability that exactly 1 of the firms is in some type of healthcare- or pharmaceutical-related business?
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N 20 a Px 0 b Px 4 c Px 2 A ...View the full answer
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Related Book For 
Business Statistics For Contemporary Decision Making
ISBN: 9781119607458
10th Edition
Authors: Ken Black
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