The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a

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The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a product on a retail website.
Reviewer Ratings

(a) Find the mean, variance, and standard deviation of the probability distribution,
(b) Interpret the results.

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 06:40 AM

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The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a

Question:

0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.050.029 0.388 0.299 0.209 0.075 2 345 Rating

Step by Step Answer:

a xPx 3942 39 2 x 2 Px 1155 12 2 1155 11 b The mean is 39 so the average revi...View the full answer

Elementary Statistics Picturing The World

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