The file P04_28.xlsx contains the probabilities of various combinations of monthly sales volumes of Dell (X) and

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The file P04_28.xlsx contains the probabilities of various combinations of monthly sales volumes of Dell (X) and HP (Y) laptop computers from online sites. Are the monthly sales of these two competitors independent of each other? Explain your answer.

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Data Analysis and Decision Making

ISBN: 978-0538476126

4th edition

Authors: Christian Albright, Wayne Winston, Christopher Zappe

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