The "hit rate" in a confusion matrix
A) indicates the proportion of sample units correctly classified.
B) is estimated by dividing the sum of the diagonal entries by the total number of individuals in all groups.
C) can only be estimated when there are three or fewer groups.
D) is all of the above.
E) is a and b above.

Question

Quizplus · Accepted Answer

The "hit rate" in a confusion matrix indicates the proportion of sample units correctly classified (A) and is estimated by dividing the sum of the diagonal entries by the total number of individuals in all groups (B). It is not limited to situations with three or fewer groups, making options A and B correct, and thus E is the correct choice.

The "Hit Rate" in a Confusion Matrix