The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a recently published book. (a) Find the mean, variance, and standard deviation of the probability distribution. (b) Interpret the results. (a) The mean is (Type an integer or a decimal. Do not round.) The variance is (Round to two decimal places as needed.) The standard deviation is (Round to two decimal places as needed.). (b) Interpret the results. Select all that apply. A. The typical rating deviates from the mean by about 4. B. The average rating for the book is approximately 1. C. The typical rating deviates from the mean by about 1. D. The average rating for the book is approximately 4. Probability 000000 543 0.1 0.020 1 8 0.0 Reviewer Ratings 0.084 2 0.214 0.239 3 Rating 4 0.443 -10 Q G

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The histogram shows the reviewer ratings on a scale from
1 (lowest) to 5 (highest) of a recently published book.
(a) Find the mean, variance, and standard deviation of the
probability distribution.
(b) Interpret the results.
(a) The mean is
(Type an integer or a decimal. Do not round.)
The variance is
(Round to two decimal places as needed.)
The standard deviation is
(Round to two decimal places as needed.).
(b) Interpret the results. Select all that apply.
A. The typical rating deviates from the mean by about 4.
B. The average rating for the book is approximately 1.
C. The typical rating deviates from the mean by about 1.
D. The average rating for the book is approximately 4.
Probability
0.5-
0.4
0.2
0.1-
0.0
0.020
Reviewer Ratings
0.084
-N
2
0.214 0.239
-00
3
Rating
14
0.443
Fin
Q
O
S
Transcribed Image Text:The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a recently published book. (a) Find the mean, variance, and standard deviation of the probability distribution. (b) Interpret the results. (a) The mean is (Type an integer or a decimal. Do not round.) The variance is (Round to two decimal places as needed.) The standard deviation is (Round to two decimal places as needed.). (b) Interpret the results. Select all that apply. A. The typical rating deviates from the mean by about 4. B. The average rating for the book is approximately 1. C. The typical rating deviates from the mean by about 1. D. The average rating for the book is approximately 4. Probability 0.5- 0.4 0.2 0.1- 0.0 0.020 Reviewer Ratings 0.084 -N 2 0.214 0.239 -00 3 Rating 14 0.443 Fin Q O S
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