Which of the following statements are true? A. There are \binom{3}{2} ways to select two letters regardless of order among the letters a,b and c. B. With the letters a,b and c you can form 3! different three letter words. The same letter may appear several times in the word. C. There are 3! permutations of the letters a,b and c. D. According to the multiplication principle, there are 5^5 ways to arrange a queue of 5 people.

Which of the following statements are true? A. There are \binom{3}{2} ways to select two letters regardless of order among the letters a,b and c. B. With the letters a,b and c you can form 3! different three letter words. The same letter may appear several times in the word. C. There are 3! permutations of the letters a,b and c. D. According to the multiplication principle, there are 5^5 ways to arrange a queue of 5 people.

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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