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Mathematics, 26.03.2020 00:43 ayoismeisalex

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.

Reviewer Ratings 1 2 3 4 5 0.0 0.1 0.2 0.3 0.4 0.5

Rating Probability 0.020 0.097 0.213 0.236 0.434

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