În studiile sociologice, psihologice, antropologice, etc. (cele care ţin de domeniul socio-uman) se utilizează "mean" cu valoare de "average". Din câte am mai citit şi auzit...Ex: Thirty-nine of the 44 participants were parents (27 mothers [61.4%] and 12 fathers
[27.3%]), 4 were spouses/partners (2 husbands, 1 wife, 1 partner [9.1%]), and 1 was a
sibling [2.3%]). Mean age of group members was 55.5 (SD º 10.0); mean age of the
BPD family member patients was 25.1(SD º 9.8); and the mean number of years that
the relative had suffered from BPD was 7.7 (SD º 7.3)
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