Question

The following are true labels and predicted labels for a test set:

True Predicted

1 1

0 0

1 1

0 0

1 1

1 0

0 1

0 1

1 1

1 1

What is the precision of the predictions?

Answer 1

Precision of predictions is given by total number of correct predictions divided by total number of predictions.

Note that a prediction is considered as correct prediction if true value is exactly the same as predicted value i.e. if true value is 1 and the corresponding predicted value is also 1 then that is considered as correct prediction and if true value is 0 and the corresponding predicted value is also 0 then that is considered as correct prediction.

Here total number of predictions is 10 and total number of correct predictions is 7.

precision of prediction= 7/10= 0.7

Hence the precision of prediction is 0.7

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