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