A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Question
How many different 5-letter words can be made:
a. if the first letter must be C, Y, or T and no letter may be repeated?
b. if repeats are allowed (but the first letter is C, Y, or T)?
c. How many of the 5-letter words (starting with C, Y, or T) with no repeats end in S?
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