Dataset: Pisa-L 2003-2006

Variable dzd15o12: Vek 2. sourozence, studuje - Q15a_2

Values Categories N
98 neinterpretovatelne 664
99 prazdne 4393

Summary Statistics

Valid cases 1103
Missing cases 5217
Minimum 5.0
Maximum 62.0
Mean 15.108
Standard deviation 5.256
This variable is numeric

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