Approximate probability that total time spent is greater

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Reference no: EM13118991

Calls to a customer service center last on average 1 minutes with a standard deviation of 1.3 minutes. An operator in the call center is required to answer 91 calls each day. Assume the call times are independent.

What is the approximate probability that the total time spent on the calls will be greater than 98 minutes? Give your answer to four decimal places. Use the standard deviation as you entered it above to answer this question.

Reference no: EM13118991

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