Assume that (71 %) of WhatsApp users have given it a five-star rating on Google Play. Of

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Assume that \(71 \%\) of WhatsApp users have given it a five-star rating on Google Play. Of the remaining users, \(15 \%, 6 \%, 3 \%\), and \(5 \%\) have given ratings of four, three, two, and one stars, respectively, to the web application.

a. Specify the probability distribution for the number of stars as rated by the users.

b. Find the mean of this probability distribution. Interpret it.

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Statistics The Art And Science Of Learning From Data

ISBN: 9781292444765

5th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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