3 groups of 3 people are to be selected from 9 people, of whom 3 are man teachers, 2 lady teachers and 4 parents. Find the probability that the 2 lady teachers being in the same group.
3 groups of 3 people are to be selected from 9 people, of whom 3 are man teachers, 2 lady teachers and 4 parents. Find the probability that the 2 lady teachers being in the same group.
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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3 groups of 3 people are to be selected from 9 people, of whom 3 are man teachers, 2 lady teachers and 4 parents. Find the probability that the 2 lady teachers being in the same group. (please help me with full solution and little explanation would help me.thankyou)
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