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

Question:

(a) Find the mean, variance, and standard deviation of the probability distribution, and

(b) Interpret the results.

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

Reviewer Ratings P(x) 0.445 0.45 0.40 0.35 0.30 0.238 0.25 0.212 0.20 0.15 0.086 0.10 0.05 0.019 1 2 3 4 Rating Probabil

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Elementary Statistics Picturing The World

ISBN: 9780134683416

7th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: May 13, 2019 06:48 AM

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

Question:

Reviewer Ratings P(x) 0.445 0.45 0.40 0.35 0.30 0.238 0.25 0.212 0.20 0.15 0.086 0.10 0.05 0.019 1 2 3 4 Rating Probability

Step by Step Answer:

a b The mean is 40 so the average reviewer rating is 4 The standard devia...View the full answer

Elementary Statistics Picturing The World

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