Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

A telephone exchange operator assumes that 9% of the phone calls are wrong numbers.If the operator is correct, what is the probability that the proportion of wrong numbers in a sample of 480 phone calls would be greater than 11 to four decimal places.