Compute the number of ways you can select n elements from

Chapter 3, Problem 5E

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QUESTION:

Problem 5E

Compute the number of ways you can select n elements from N elements for each of the following:

a. n = 2, N = 5

b. n = 3, N = 6

c. n = 5, N = 20

Questions & Answers

QUESTION:

Problem 5E

Compute the number of ways you can select n elements from N elements for each of the following:

a. n = 2, N = 5

b. n = 3, N = 6

c. n = 5, N = 20

ANSWER:

Solution:

Step 1 of 3:

  1. The claim is to check the number of ways we can select n elements from N elements.

We have n = 2, and N = 5.

Let,  =

             =

             =

 

            = 10

10 ways we can select n elements from N elements.


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