SOLUTION: a large shipment of books contains 5% with imperfect bindings.find the probabilities that among 100 books randomly selected from the shipment : 1- exactly 4 will have imperfect bi

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Question 770572: a large shipment of books contains 5% with imperfect bindings.find the probabilities that among 100 books randomly selected from the shipment :
1- exactly 4 will have imperfect binding?
2-al least 2 will have imperfect binding (use poisson app)?
3-between 2 and 10 (both inclusive) will have imperfect binding (use normal app)?

Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
I do here the first part:

1) P(x =4) = C(100,4)(0.05)4(0.95)96 = 0.178
You can ask me more at: mthman@gmail.com
Thanks