Survey on International Mobility of Students SAMPLING ERRORS Sampling errors relative to persons from 18 to 34 by age group and cases of mobility in languages courses Units: Coefficient of variation ,Moved abroad,Did not move abroad, TOTAL,2.47,0.34, 18 to 24 years old,3.81,0.61, 25 to 29 years old,4.18,0.63, 30 to 34 years old,6.24,0.63, Notes: 1) Mobility: Moving abroad for study or training Source: INE