s can this be done, if the order of the choices is taken into s can this be done, if the order of the choices is not take

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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Suppose we want to choose 2 letters, without replacement, from the 4 letters A, B, C, and D.

(a) How many ways can this be done, if the order of the choices *is* taken into consideration?

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(b) How many ways can this be done, if the order of the choices *is not* taken into consideration?

[Input box]
Transcribed Image Text:Suppose we want to choose 2 letters, without replacement, from the 4 letters A, B, C, and D. (a) How many ways can this be done, if the order of the choices *is* taken into consideration? [Input box] (b) How many ways can this be done, if the order of the choices *is not* taken into consideration? [Input box]
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