Note: In this problem set, the notation C(n, k) is used for the combination "n choose k." Alternate notation: ( ) 14.) An elementary school teacher allows her class to vote for 2 pets to be cared for and studied during the school year. The choices are guinea pigs, fish, or turtles. Each student may vote for 2 pets out of the 3 choices, and repetition is allowed. How many distinct 2 pet votes are possible?

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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Note: In this problem set, the notation C(n, k) is used for
the combination "n choose k." Alternate notation: ( )

14.) An elementary school teacher allows her class to vote for 2 pets to be cared for and studied
during the school year. The choices are guinea pigs, fish, or turtles. Each student may vote for 2
pets out of the 3 choices, and repetition is allowed. How many distinct 2 pet votes are possible? 

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