zhǐ​shù HSK6

index

指数 指數 zhǐ​shù
index noun
A number used in statistics to show how much a value (such as prices or productivity) has changed compared to a base period.
exponent
(math) A small number or symbol written at the upper right of another number to show how many times it is multiplied by itself.

Frequency

Movie subtitles
4.50 per million appears in 2% of films
Written text
92.3 per million

Details

HSK 3.0
Level 6

Sources