Kvartilise

Kvartilise is a term that appears to be a misspelling or a less common transliteration. It is highly likely that the intended term is "quartile". Quartiles are statistical measures that divide a dataset into four equal parts. The first quartile, often denoted as Q1, represents the 25th percentile, meaning 25% of the data falls below this value. The second quartile, Q2, is the median and represents the 50th percentile, with half the data below and half above it. The third quartile, Q3, corresponds to the 75th percentile, indicating that 75% of the data is below this value.

The interquartile range (IQR) is the difference between the third and first quartiles (Q3 - Q1). It provides a measure of statistical dispersion, representing the middle 50% of the data and is less sensitive to outliers than the full range of the data. Quartiles are widely used in descriptive statistics to understand the distribution and spread of data. They are particularly useful for identifying skewness and the presence of extreme values. Visualizations like box plots heavily rely on quartiles to display the summary of a dataset's distribution. If "kvartilise" refers to a different concept, further clarification would be needed to provide accurate information. However, given the phonetic similarity and common statistical usage, "quartile" is the most probable intended meaning.