The mode of $S$ is the element of $S$ which occurs most often in $S$.
If there is more than one such element of $S$ which occurs equally most often, it is then understood that each of these is a mode.
Let $X$ have probability density function $f_X$.
We call $M$ a mode of $X$ if $f_X$ attains its (global) maximum at $M$.
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): Entry: mode
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