Suppose that telephone calls on a particular line have an expected length of 320 seconds with a
Question:
(a) What are the expectation and the standard deviation of the total length of five calls?
(b) What are the expectation and the standard deviation of the average length of ten calls?
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a The expectation is 5 320 1600 seconds The var...View the full answer
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Related Book For
Probability And Statistics For Engineers And Scientists
ISBN: 9780495107576
3rd Edition
Authors: Anthony Hayter
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