I have 2 movies, their rating distribution is this:
movie_id 1_star 2_star 3_star 4_star 5_star std 1 0.661 0.231 0.081 0.012 0.015 1.629 2 0.002 0.005 0.071 0.314 0.608 1.335
1~5 star corresponding to the rating as 2~10
If we look at the distribution, these 2 would look like
The question is that, which one would have a higher deviation in the rating?
While the first movie's rating looks more clustered, but it turns out that it has a higher standard deviation.
What is happening?
My analysis is that, notice the tail distribution, the movie 1 has 1.4% with 5 star, while movie 2 only has 0.2%.
But I'm not sure if this is the reason? or there are other reasons?