# Green Classify Tool – Statistics – Precision

Precision is calculated on the Marked images, and is the percentage of images correctly marked as a class, out of all of the images Marked in that class.

However, a high Precision score could also indicate that there are very few Views with a particular classification, for example, if there are one or two other classes, but not a high overall percentage of views that should be classified in those classes.

The tool calculates Precision as the percentage of correctly classified views predicted as class i:

This is related to the number of false positives, and the rate of correct prediction for a given class.