wù​chā HSK7

error

误差 誤差 wù​chā
error noun
The difference between an observed, measured, or calculated value and the true or exact value, often in a technical, mathematical, or scientific context

There is only one second of error per day.

discrepancy
A difference between two things that should be the same; a mismatch or inconsistency between a report or prediction and the actual situation

Frequency

Movie subtitles
0.920 per million appears in 0% of films
Written text
8.56 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources