The manager of a new coffee shop is collecting information for how often cars arrive at its drive-through window. The arrivals occur at random times. So far, the manager has counted 2140 cars that arrived over a period of 2350 minutes. Suppose that we choose a minute, sometime in the future, at random. What are the mean and standard deviation of the number of cars that arrive for the minute chosen? To answer, use the information the manager has collected and assume that the number of cars that arrive follows a Poisson distribution. Round your answers to two decimal places. (a) mean: (b) standard deviation:|
The manager of a new coffee shop is collecting information for how often cars arrive at its drive-through window. The arrivals occur at random times. So far, the manager has counted 2140 cars that arrived over a period of 2350 minutes. Suppose that we choose a minute, sometime in the future, at random. What are the mean and standard deviation of the number of cars that arrive for the minute chosen? To answer, use the information the manager has collected and assume that the number of cars that arrive follows a Poisson distribution. Round your answers to two decimal places. (a) mean: (b) standard deviation:|
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:The manager of a new coffee shop is collecting information for how often cars arrive at its drive-through window. The arrivals occur at random times. So far,
the manager has counted 2140 cars that arrived over a period of 2350 minutes.
Suppose that we choose a minute, sometime in the future, at random. What are the mean and standard deviation of the number of cars that arrive for the
minute chosen? To answer, use the information the manager has collected and assume that the number of cars that arrive follows a Poisson distribution. Round
your answers to two decimal places.
O
(a) mean:
(b) standard deviation:
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