SOLUTION: A surgical technique is performed on seven patients. You are told there is a 70% chance of success. Find the probability that the surgery is successful for
a.) exactly five patie
Algebra ->
Probability-and-statistics
-> SOLUTION: A surgical technique is performed on seven patients. You are told there is a 70% chance of success. Find the probability that the surgery is successful for
a.) exactly five patie
Log On
Question 363429: A surgical technique is performed on seven patients. You are told there is a 70% chance of success. Find the probability that the surgery is successful for
a.) exactly five patients
b.) at least five patients
c.) less than five patients Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! Let x=.7 and y=.3
(x+y)^7=x^7+7x^6y+21x^5y^2+...
.
a)21x^5y^2=.3177
.
b)x^7+7x^6y+21x^5y^2=.6471
.
c) 1-.6471=.3529
.
Ed
