(a) On a given day, what is the probability (in fraction form) that the employees park in alphabetical order? (b) If the alphabetical order has an equal chance of occurring relative to all other possible orderings, how many ways must there be to arrange the five cars? (c) Now consider a sample of 8 employees instead. How many possible ways are there to order these 8 employees' cars?

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.1: Counting
Problem 4E: True or False? In counting combinations, order matters. In counting permutations, order matters. For...
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3.37 Exploring permutations The formula for the number of ways to arrangen objects is n! = n * (n - 1) *
· * 2 * 1. This exercise walks you through the derivation of this formula for a couple of special cases.
A small company has five employees: Anna, Ben, Carl, Damian, and Eddy. There are five parking spots in a
row at the company, none of which are assigned, and each day the employees pull into a random parking
spot. That is, all possible orderings of the cars in the row of spots are equally likely.
...
(a) On a given day, what is the probability (in fraction form) that the employees park in alphabetical order?
(b) If the alphabetical order has an equal chance of occurring relative to all other possible orderings, how
many ways must there be to arrange the five cars?
(c) Now consider a sample of 8 employees instead. How many possible ways are there to order these 8
employees' cars?
Transcribed Image Text:3.37 Exploring permutations The formula for the number of ways to arrangen objects is n! = n * (n - 1) * · * 2 * 1. This exercise walks you through the derivation of this formula for a couple of special cases. A small company has five employees: Anna, Ben, Carl, Damian, and Eddy. There are five parking spots in a row at the company, none of which are assigned, and each day the employees pull into a random parking spot. That is, all possible orderings of the cars in the row of spots are equally likely. ... (a) On a given day, what is the probability (in fraction form) that the employees park in alphabetical order? (b) If the alphabetical order has an equal chance of occurring relative to all other possible orderings, how many ways must there be to arrange the five cars? (c) Now consider a sample of 8 employees instead. How many possible ways are there to order these 8 employees' cars?
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