11. In how many ways can 4 boys and 5 girls sit in a row if the boys and girls must alternate?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter0: Preparing For Algebra
Section0.11: Simple Probability And Odds
Problem 13E
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11. In how many ways can 4 boys and 5 girls sit in a row if the boys and girls must
alternate?
12. In a regional spelling bee, the 8 finalists consist of 3 boys and 5 girls. Find the number
of sample points in the sample space S for the number of possible orders at the
conclusion of the contest for:
a. all 8 finalists;
b. the first 3 positions.
13. Find the number of ways that 6 teachers can be assigned to 4 sections of an
introductory psychology course if no teacher is assigned to more than one section.
14. In how many ways can 5 different trees be planted in a circle?
15. How many distinct permutations can be made from the letters of the word INFINITY?
Transcribed Image Text:11. In how many ways can 4 boys and 5 girls sit in a row if the boys and girls must alternate? 12. In a regional spelling bee, the 8 finalists consist of 3 boys and 5 girls. Find the number of sample points in the sample space S for the number of possible orders at the conclusion of the contest for: a. all 8 finalists; b. the first 3 positions. 13. Find the number of ways that 6 teachers can be assigned to 4 sections of an introductory psychology course if no teacher is assigned to more than one section. 14. In how many ways can 5 different trees be planted in a circle? 15. How many distinct permutations can be made from the letters of the word INFINITY?
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