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| δείγμα έρευνας; έρευνα | |||
| δειγματοληπτική έρευνα; δειγµατοληπτική έρευνα; δειγματοληπτική απογραφή | |||
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enquête par sondage : 3 phrases in 2 subjects |
| General | 1 |
| Statistics | 2 |
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