The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a
Question:
Reviewer Ratings
(a) Find the mean, variance, and standard deviation of the probability distribution,
(b) Interpret the results.
Transcribed Image Text:
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
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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
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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