問題文
An evaluation reports an average score of zero point six eight across two hundred items. The team wants to decide what to work on next. Which analysis is the most useful first step?
選択肢
- Re-run the evaluation to confirm that zero point six eight is reproducible.
- Group the low-scoring items by what went wrong, so the largest recurring cause can be identified.
- Increase the size of the evaluation set to four hundred items, because a larger set produces a more reliable average and any conclusion drawn from two hundred items risks being an artifact of the particular items that were chosen.
- Compare the average against an industry benchmark to see whether it is acceptable.