Types
The table of mathematical symbols explains the symbols used below.
| Name | Equation or description |
|---|---|
| Arithmetic mean | |
| Median | The middle value that separates the higher half from the lower half of the data set |
| Geometric median | A rotation invariant extension of the median for points in Rn |
| Mode | The most frequent value in the data set |
| Geometric mean | |
| Harmonic mean | |
| Quadratic mean (or RMS) |
 |
| Generalized mean | |
| Weighted mean | |
| Truncated mean | The arithmetic mean of data values after a certain number or proportion of the highest and lowest data values have been discarded |
| Interquartile mean | A special case of the truncated mean, using the interquartile range |
| Midrange | |
| Winsorized mean | Similar to the truncated mean, but, rather than deleting the extreme values, they are set equal to the largest and smallest values that remain |
| Annualization |
Read more about this topic: Average
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