Quantile
A value below which a stated proportion of observations fall. The index uses the type 7 definition and says so.
Related terms
- Median
- The 50th percentile. Preferred over the mean throughout this index because purity distributions have long left tails.
- Interquartile range (IQR)
- The difference between the 75th and 25th percentiles. The index's preferred spread statistic because purity distributions are left-skewed.
see also Interquartile range (IQR)
Where this term appears
The glossary exists to make record pages readable without a chemistry degree. Every technical term on a report resolves here.
- Assay report records — the term appears in result tables, peak tables and provenance blocks
- Method references — where the measurement behind the term is defined
- All 4 glossary terms beginning with Q