Question 658345: A surgical technique with 0.70 chance of success is performed on seven patients. find the probability that the surgery is successful for (a) exactly five patients, (b) at least five patients and (c) less than five patients. list all assumptions used to construct the binomial distribution
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A surgical technique with 0.70 chance of success is performed on seven patients. find the probability that the surgery is successful for
(a) P(exactly five patients) = 7C5(0.7)^5(0.3)^2 = binompdf(7,0.7,5) = 0.3177
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(b) P(at least five patients) = 1 - binomcdf(7,0.7,4) = 0.6471
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(c) P(less than five patients) = binomcdf(7,0.7,4) = 0.3529
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Cheers,
Stan H.
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