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When using a confusion matrix to assess model performance, which of following is the precision ratio? Multiple Choice Ratio of correct classifications to total values

When using a confusion matrix to assess model performance, which of following is the precision ratio?

Multiple Choice

Ratio of correct classifications to total values in dataset.

Ratio of correct positive predictions to the number of positive predictions.

Ratio of incorrect predictions to total predictions.

Ratio of correct positive predictions to the number of positive values in dataset.

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