Keskmisi

Keskmisi is the partitive plural form of the Estonian adjective keskmine, meaning average or mean. In standard Estonian, keskmine can function as an adjective and as a noun in certain constructions. The form keskmisi is used when the noun it modifies is in the partitive case or when referring to an indeterminate or collective amount of averages. In practice, keskmisi appears most often in statistical or data-related contexts, where it denotes multiple average values rather than a single mean.

Usage and examples

Keskmisi is commonly found in phrases such as andmete keskmisi väärtusi or mitmete keskmisi näitajaid, where the partitive plural marks a non-specific or partial quantity of averages. By contrast, the nominative plural keskmised is used when the averages are the subject or the main focus of a sentence, e.g., keskmised väärtused.

Meaning and scope

In everyday statistics writing, keskmine typically refers to the arithmetic mean, or more generally to an average measure. Keskmisi, therefore, points to several such values across variables, data sets, or categories. It is not a standalone noun but a grammatical form that interacts with the noun it modifies.

Related terms

Related statistical terms include aritmeetiline keskmine (arithmetic mean) and mediaan (median). The choice between these terms depends on the specific type of central tendency being described and the grammatical role of the noun.

See also

Estonian grammar and statistics terminology, including keskmine, keskmised, aritmeetiline keskmine, and mediaan.