Suppose Joe is seeking a job. He decides to consider n possible jobs. However, after being offered a Job, he must immediately decide whether to accent it or decline it and consider the next job that becomes available. Notice that when considering a new job offer, Joe only knows the relative rank of that job compared to the ones he has already declined. Assume that all n! orderings are equany likely and that once a job is declined it is gone forever. Suppose Joe's strategy is to reject the mse k jobs and then accept the first one that is better than all of those first k. For a given value of k, what is the probability that Joe selects the best job? What value ofk would maximize the probability that Joe selects the best job under this strategy?

A First Course in Probability (10th Edition)
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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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a job, he must immediately decide whether to accept it or decline it and consider the next job that
becomes available. Notice that when considering a new job offer, Joe only knows the relative rank
6.57 Suppose Joe is seeking a job, He decides to consider n possible jobs. However, after bemg h that
lat Job compared to the ones he has already declined, Assume that all n! orderings are equaliy
likely and that once a job is declined it is gone forever. Suppose Joe's strategy is to reject the mse k
jobs and then accept the first one that is better than all of those first k.
For a given value of k, what is the probability that Joe selects the best job?
b
What value of k would maximize the probability that Joe selects the best job under this strategy?
Transcribed Image Text:a job, he must immediately decide whether to accept it or decline it and consider the next job that becomes available. Notice that when considering a new job offer, Joe only knows the relative rank 6.57 Suppose Joe is seeking a job, He decides to consider n possible jobs. However, after bemg h that lat Job compared to the ones he has already declined, Assume that all n! orderings are equaliy likely and that once a job is declined it is gone forever. Suppose Joe's strategy is to reject the mse k jobs and then accept the first one that is better than all of those first k. For a given value of k, what is the probability that Joe selects the best job? b What value of k would maximize the probability that Joe selects the best job under this strategy?
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