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selected such that at least one boy should be there? b. From a group of 7 men and 6 women, five persons are to l that at least 3 men are there in the committee. In how ma C. In how many ways can the letters of the word 'OPTICAL' b

selected such that at least one boy should be there? b. From a group of 7 men and 6 women, five persons are to l that at least 3 men are there in the committee. In how ma C. In how many ways can the letters of the word 'OPTICAL' b

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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a. In a group of 6 boys and 4 girls, four children are to be selected. In how many ways can they be selected such that at least one boy should be there? b. From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there in the committee. In how many ways can it be done? C. In how many ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?
Transcribed Image Text:a. In a group of 6 boys and 4 girls, four children are to be selected. In how many ways can they be selected such that at least one boy should be there? b. From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there in the committee. In how many ways can it be done? C. In how many ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?
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