フリー問題

問題文

A team is setting up fields in a Communications Mining dataset and is also reading how precision is worked out. The first line of the note has to say which of the two kinds of field has its predictions rest on a label. The second line has to give the number of messages that would be rightly annotated, out of every hundred predicted as carrying a given label, at a precision of 95 percent. Which pairing belongs in the note?

選択肢

1. The kind of field whose predictions rest on a label is the linked ones, and out of every hundred messages predicted as carrying a given label the number rightly annotated at that precision is 65.
2. The kind of field whose predictions rest on a label is the common ones, and out of every hundred messages predicted as carrying a given label the number rightly annotated at that precision is 95.
3. The kind of field whose predictions rest on a label is the linked ones, and out of every hundred messages predicted as carrying a given label the number rightly annotated at that precision is 95.
4. The kind of field whose predictions rest on a label is the common ones, and out of every hundred messages predicted as carrying a given label the number rightly annotated at that precision is 65.