# SOLUTION: If 5 patients in a hospital are to undergo surgery in which the survival rate is 50%, what is the probability that---all will survive? three will survive? more than half will sur

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 Question 245511: If 5 patients in a hospital are to undergo surgery in which the survival rate is 50%, what is the probability that---all will survive? three will survive? more than half will survive?Answer by edjones(7569)   (Show Source): You can put this solution on YOUR website!Let s=survivor and d=death s=.5, d=.5 s^5=.5^5=.03125 all 5 survive. . nCr*s^3d^2 =5C3*.5^3.5^2 =10*.125*.25 =.3125 Three survive . nCr*s^4d 5*.0625*.5 =.15625 four survive. .03125+.15625+.3125 =.5 more than 1/2 survive. . Ed