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Four engineers, A, B, C, and D, have been scheduled for job interviews at 10 a.m. on Friday, January 13, at Random Sampling, Inc. The personnel manager has scheduled the four for interview rooms 1, 2, 3, and 4, respectively. However, the manager's secretary does not know this, so assigns them to the four rooms in a completely random fashion (what elsel). (a) What is the probability that all four end up in the correct rooms? (Round your answer to four decimal places.) (b) What is the probability that none of the four ends up in the correct room?

Four engineers, A, B, C, and D, have been scheduled for job interviews at 10 a.m. on Friday, January 13, at Random Sampling, Inc. The personnel manager has scheduled the four for interview rooms 1, 2, 3, and 4, respectively. However, the manager's secretary does not know this, so assigns them to the four rooms in a completely random fashion (what elsel). (a) What is the probability that all four end up in the correct rooms? (Round your answer to four decimal places.) (b) What is the probability that none of the four ends up in the correct room?

A First Course in Probability (10th Edition)
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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Four engineers, A, B, C, and D, have been scheduled for job interviews at 10 a.m, on Friday, January 13, at Random Sampling, Inc. The personnel manager has scheduled the four for interview rooms 1, 2, 3, and 4, respectively. However, the manager's secretary does not know this, so assigns them to the four rooms in a completely random fashion (what elsel). (a) What is the probability that all four end up in the correct rooms? (Round your answer to four decimal places.) (b) What is the probability that none of the four ends up in the correct room?
Transcribed Image Text:Four engineers, A, B, C, and D, have been scheduled for job interviews at 10 a.m, on Friday, January 13, at Random Sampling, Inc. The personnel manager has scheduled the four for interview rooms 1, 2, 3, and 4, respectively. However, the manager's secretary does not know this, so assigns them to the four rooms in a completely random fashion (what elsel). (a) What is the probability that all four end up in the correct rooms? (Round your answer to four decimal places.) (b) What is the probability that none of the four ends up in the correct room?
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