SOLUTION: I have a question i cannot understand. here is my question Suppose that 40% of the CPU requests by processes running on a large computer system are for I/O. The requests are ran

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Question 859795: I have a question i cannot understand. here is my question
Suppose that 40% of the CPU requests by processes running on a large computer system are for I/O. The requests are random and independent of each other. What is the probability that among the next 7 CPU requests, exactly 3 will be for I/O?
any help would be greatly appreciated
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

p(I/O request) = .40, n = 7

p(x=3) = binompdf(7,.40,3) = .2903

0r