Question 838518: An olympic archer is able to hit a bullseye 80% of the time. assume each shot is independent of the others. if she shoots 10 arrows,
a. what is the probability that she never misses.
b. what is the probability that she gets exactly 8 bulleyes.
c. what is the probabilty that she hits the bullseye more than she misses?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! An olympic archer is able to hit a bullseye 80% of the time. assume each shot is independent of the others. if she shoots 10 arrows,
a. what is the probability that she never misses:: 0.8^10 = 0.1074
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b. what is the probability that she gets exactly 8 bulleyes.
P(x = 8) = 10C8(0.8^8)(0.2^2) = binompdf(10,0.8,8) = 0.3020
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c. what is the probabilty that she hits the bullseye more than she misses?
P(6<= x <=10) = 1 - binomcdf(10,0.8,5) = 0.9672
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Cheers,
Stan H.
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