Yah :) I have no idea what the estimates was.
But the basic idea here is that you have a table "ratings".

id, productid(or w.e id you have on the thing that is being rated), 1, 2, 3, 4, 5

Then when someone rates 2, add one to the "2" column
And when getting the actual rating of the product(or w.e), you do the formula that I posted in my previous post

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