Hi,

Note: The probability of x successes in n trials is: 

P = nCx*  where p and q are the probabilities of success and failure respectively. 

In this case p(w/o insurance)= 1/6 & q = 5/6 and n = 8

8 transplants are selected at random

P(none from w/o ins)= 

P(8 from w/o ins) =  

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