NCIt definition : The sum of a set of values divided by the number of values in the set.;
Alternative definition : CDISC-GLOSS: The sum of the values of all observations or data points divided by the
number of observations; an arithmetical average.; NCI-GLOSS: A statistics term. The average value in a set of measurements. The mean
is the sum of a set of numbers divided by how many numbers are in the set.; CDISC: The sum of the values of all observations or data points divided by the number
of observations; an arithmetic average. (CDISC Glossary); MRCT-Ctr: The average. (https://mrctcenter.org/glossaryterm/mean/);
Currated CISMeF NLP mapping