reater than 30, the Poisson distribution begins to be very similar to the normal with both a mean and variance of μ. Using this approximation, determine how many 911-operators are needed to ensure at most 5% busy signals if the mean number of emergency phone calls at any given time is 40. Number of 911-operators to ensure at most 5% b
reater than 30, the Poisson distribution begins to be very similar to the normal with both a mean and variance of μ. Using this approximation, determine how many 911-operators are needed to ensure at most 5% busy signals if the mean number of emergency phone calls at any given time is 40. Number of 911-operators to ensure at most 5% b
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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As λ increases, say, to values greater than 30, the Poisson distribution begins to be very similar to the normal with both a mean and variance of μ. Using this approximation, determine how many 911-operators are needed to ensure at most 5% busy signals if the mean number of emergency phone calls at any given time is 40.
Number of 911-operators to ensure at most 5% busy signals is: __________
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