You are evaluating a spam filter using an ROC curve. The AUC is $0\mathrm{.}75.$ What can you conclude about the filter's performance?

Question $3$Answer

a$.$

It has a perfect balance between catching spam and avoiding false positives.

b$.$

It needs significant improvement in its ability to identify spam becaus it is worse than even random choice.

c$.$

It is slightly better than chance at identifying spam emails.

d$.$

It catches most spam emails but also generates many false positives.