zhǐ​shù HSK6

index

指数 (指數) zhǐ​shù
index expression
a statistical or numerical measure used to monitor and track changes in a specific variable or economic sector
exponent noun
the mathematical power to which a base is raised, or relating to exponential functions and growth patterns

In this algebra problem, we first need to determine the base and the exponent in the expression.

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

Definitions
CC-CEDICT