SOLUTION: A convenience store manager finds that the probabilities that a customer purchases 0, 1, 2 or 3 or more beverages are 0.42, 0.33, 0.12 and 0.13, respectively. In a random sample

Question 1170504: A convenience store manager finds that the probabilities that a customer
purchases 0, 1, 2 or 3 or more beverages are 0.42, 0.33, 0.12 and 0.13,
respectively. In a random sample of 7 customers, find the probability that 2
will not purchase any beverages, 3 will purchase 1 beverage, 1 will purchase 2
beverages, and 1 will purchase 3 or more beverages.
Answer by Edwin McCravy(20063) (Show Source): You can put this solution on YOUR website!

This is a multinomial probability problem

 where  and 

Here

X = the event that 2 will not purchase any beverages, 3 will purchase 1 beverage,
1 will purchase 2 beverages, and 1 will purchase 3 or more beverages.



Edwin

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