The correct answers are A medium confidence threshold is associated with a numeric value of 85, A high confidence threshold will only return matches that are classified as high confidence, A low confidence threshold will return matches at low medium and high confidence levels, and Using a high confidence threshold reduces false positives but may increase false negatives.

A medium confidence threshold is associated with a numeric value of 85 is correct because the system maps human readable confidence levels to numeric score cutoffs and the medium level is defined at the 85 numeric cutoff in this configuration. This numeric mapping ensures that detections must meet or exceed that score to be considered medium confidence.

A high confidence threshold will only return matches that are classified as high confidence is correct because a high threshold requires the classifier score to reach the high level cutoff. Only findings that meet the high confidence criteria are returned when that threshold is applied which reduces lower confidence matches.

A low confidence threshold will return matches at low medium and high confidence levels is correct because a low cutoff is inclusive of anything above the low threshold. That means the detector will surface matches that fall into low and also those that score higher in medium and high categories.

Using a high confidence threshold reduces false positives but may increase false negatives is correct because raising the cutoff filters out borderline and lower scoring matches which cuts false alarms. The trade off is that some true instances that score below the stricter cutoff will be missed which raises false negatives.

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