Answer the following 4 following parts to the problem? Please explain how you recieve the varience value on a TI-83 calculator? I am

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Author:Amos Gilat
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Answer the following 4 following parts to the problem? Please explain how you recieve the varience value on a TI-83 calculator? I am not recieving the right answer for that part I need to know how to get that part right for my final exam. I do not have time to do formulas because I have timed tests. Thanks!

The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a recently published book.
Reviewer Ratings
0.5-
0.442
(a) Find the mean, variance, and standard deviation of the probability distribution.
(b) Interpret the results.
0.3-
0.2-
0.211 0.243
0.084
0.1-
0.020
0.01
Rating
(a) The mean is
(Type an integer or a decimal. Do not round.)
Probability
Transcribed Image Text:The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a recently published book. Reviewer Ratings 0.5- 0.442 (a) Find the mean, variance, and standard deviation of the probability distribution. (b) Interpret the results. 0.3- 0.2- 0.211 0.243 0.084 0.1- 0.020 0.01 Rating (a) The mean is (Type an integer or a decimal. Do not round.) Probability
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