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Assume that on an average one telephone number out of 15 called between 2 pm and 3 pm on week days is busy. What is the probability that if six randomly selected telephome numbers are called at least 3 of them are busy?

Asked by ayush singh 22nd December 2011, 8:33 AM
Answered by Expert
Answer:
Answered by Expert 22nd December 2011, 9:42 AM
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