SOLUTION: A riffle man is able, on the average, to hit a target at a certain range 75 times out of 100. What is the probability that in 10 shots he will a. hit the target every time? b. hi

Algebra ->  Statistics  -> Binomial-probability -> SOLUTION: A riffle man is able, on the average, to hit a target at a certain range 75 times out of 100. What is the probability that in 10 shots he will a. hit the target every time? b. hi      Log On


   

Question 1158732: A riffle man is able, on the average, to hit a target at a certain range 75 times out of 100. What is the probability that in 10 shots he will
a. hit the target every time?
b. hit the target 8 or more times?
Answer by greenestamps(13203) About Me  (Show Source):
You can put this solution on YOUR website!


a. 10 out of 10:

.75%5E10

b. 8 or more out of 10 (i.e., 8 out of 10 OR 9 out of 10 OR 10 out of 10):

C%2810%2C8%29%28.75%5E8%29%28.25%5E2%29%2BC%2810%2C9%29%28.75%5E9%29%28.25%29%2B.75%5E10