2. A classroom is composed of 10 students: 5 men and 5 women. The students are assigned into pairs at random, and each pair is assigned to complete a different task (T1, T2, T3, T4, T5). (a) How many possible configurations for the pair assignments exist? (Note: each configuration consists of pairs and tasks assignments for all students). (b) What is the probability that all pairs consist of different-gender members? (c) If student A and B are friends, what is the probability that they are assigned to the same task together?

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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2.
A classroom is composed of 10 students: 5 men and 5 women. The students are assigned into
pairs at random, and each pair is assigned to complete a different task (T1, T2, T3, T4, T5).
(a) How many possible configurations for the pair assignments exist? (Note: each configuration consists
of pairs and tasks assignments for all students).
(b) What is the probability that all pairs consist of different-gender members?
(c) If student A and B are friends, what is the probability that they are assigned to the same task together?
Transcribed Image Text:2. A classroom is composed of 10 students: 5 men and 5 women. The students are assigned into pairs at random, and each pair is assigned to complete a different task (T1, T2, T3, T4, T5). (a) How many possible configurations for the pair assignments exist? (Note: each configuration consists of pairs and tasks assignments for all students). (b) What is the probability that all pairs consist of different-gender members? (c) If student A and B are friends, what is the probability that they are assigned to the same task together?
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