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Valimiväärtused on esitatud järgmise tabeli abil
| esinemise arv | |
| 3 | 10 |
| 6 | 14 |
| 12 | 6 |
| KOKKU | 30 |
Leida valimi dispersioon .
Vastus esitada kolme komakoha täpsusega.
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