Suppose we are interested to study the number of customers arriving at a bank in a random
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Question:
Suppose we are interested to study the number of customers arriving at a bank in a random work day. Previously we learned that the average number of customers per day is 100.
(a) Define a random variable X for the number of customers arriving in a random work day.
(b) Find the probability mass function.
(c) Computer the probability that there will be at least 75 customers arriving at a random work day.
(d) Derive the expected value (mean) of X based on the definition.
(e) What is the expected number of customers arriving in a random week of five working days?
Related Book For
Data Analysis and Decision Making
ISBN: 978-0538476126
4th edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe
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