フリー問題

問題文

After three months in production the daily average of the predicted quantity has not moved, yet several input fields now arrive with a noticeably different distribution than during development. Which statement below is correct?

選択肢

1. The monitoring must track incoming row volumes, because output level checks miss quiet schedule slips.
2. The monitoring must track incoming value spreads, because output level checks miss quiet accuracy losses.
3. The monitoring must track incoming value spreads, because output level checks miss quiet schedule slips.
4. The monitoring must track incoming row volumes, because output level checks miss quiet accuracy losses.