5.) How many different 4-letter radio station call letters are possible if: (a) The first letter must be K or W and no letter may be repeated? (b) The first letter must be K or W, and repetition of letters is allowed? (c) The first letter must be K or W, no letter may be repeated, and the last letter is R? !

5.) How many different 4-letter radio station call letters are possible if: (a) The first letter must be K or W and no letter may be repeated? (b) The first letter must be K or W, and repetition of letters is allowed? (c) The first letter must be K or W, no letter may be repeated, and the last letter is R? !

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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5.) How many different 4-letter radio station call letters are possible if:
(a) The first letter must be K or W and no letter may be repeated?

(b) The first letter must be K or W, and repetition of letters is allowed?

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