Question: given the confusion matrix on the training data as follows, what are the accuracy , specificity , recall, precision, F1 measure and false positive rate(FPR)?

given the confusion matrix on the training data as follows, what are the accuracy , specificity , recall, precision, F1 measure and false positive rate(FPR)? please post the detail work. what measures are appropriate? keep 4 decimal places.

Predicted+ predicted -

Actual + 40 10

actual- 20 600

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