The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a recently published book. Reviewer Ratings ,0 (a) Find the mean, variance, and standard deviation of the probability distribution. (b) Interpret the results. ,0 0.215 0-233 Prob ability I2? (a) The mean is E. (Type an integer or a decimal. Do not round.) The variance is . (Round to two decimal places as needed.) The standard deviation is D. (Round to two decimal places as needed.) (b) Interpret the results. Select all that apply. E] A. The average rating for the book is approximately 4. E] B. The typical rating deviates from the mean by about 4. E] C. The average rating for the book is approximately 1. E] D. The typical rating deviates from the mean by about 1