SOLUTION: The probability that an open-heart operation is successful is 0.83 What is the probability that in two randomly selected open-heart operations at least one will not be successful?

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Question 844876: The probability that an open-heart operation is successful is 0.83 What is the probability that in two randomly selected open-heart operations at least one will not be successful?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Probability of 1 successful surgery is 0.83

The probability of 2 successful surgeries is 0.83*0.83 = 0.6889

The probability of at least one failure is 1 - 0.6889 = 0.3111

So the answer is 0.3111