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

Solution:

Step 1 of 3:

- 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.