Correlation working to suggest movies

how exactly co-relation is working to find similar movie.
I am confused here.

hey @Par1hsharma ,
Correlation is a actually a metric between two variables , that explains how one would be effected , if there is any change in the value of other.
So,here as we are working on ratings of each movie , hence a correlation between two movies will explain that if the ratings of one movie increases/decreases then how does it effects the ratings of other movies.

So , if we see that another movie B ratings are also changing in the same way as the ratings of movie A , then they both are co related to each other , i.e they are similar.

I hope this helped /

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