SELF-CHECK
With TP 30, FP 10 and FN 20, what are precision and recall?

REFERENCE REASONING
Precision=30/(30+10)=75%; recall=30/(30+20)=60%. Report the target class and evaluation population with these values.

This is a reasoning reference for the supplied fictional case, not an executed app or tested cloud deployment. Alternative approaches are valid when supported by stated assumptions and evidence.
