There are 26 letters in the alphabet. How many are there of each of the following? (a) Sequences of letters of length 5? (b) Sequences of letters of length 5, with no repeated letters? (c) Sets of letters of size 5?

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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(3) There are 26 letters in the alphabet. How many are there of
each of the following?
(a) Sequences of letters of length 5?
(b) Sequences of letters of length 5, with no repeated letters?
(c) Sets of letters of size 5?
Transcribed Image Text:(3) There are 26 letters in the alphabet. How many are there of each of the following? (a) Sequences of letters of length 5? (b) Sequences of letters of length 5, with no repeated letters? (c) Sets of letters of size 5?
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