17. The science club members are to work in pairs on an experiment. a) If there are eight members present, in how many ways can the pairs be formed? [105] b) If Louis and Simone will not work together, how many different pairs can be formed? [90]
17. The science club members are to work in pairs on an experiment. a) If there are eight members present, in how many ways can the pairs be formed? [105] b) If Louis and Simone will not work together, how many different pairs can be formed? [90]
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 40SE: A family consisting of 2 parents and 3 children is to pose for a picture with 2 family members in...
Related questions
Question
100%
Answer to a) is 105
Answer to b) is 90
This is a combinations question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell