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| gemiddeld verschil | |||
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| variantie f; dispersie; spread m; spreiding f | |||
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| spreiding f (Pitman); dispersie (Pitman); spread m (Pitman); variantie f (Pitman) | |||
| différence des moyennes: 9 phrases in 4 subjects |
| Earth sciences | 1 |
| Life sciences | 1 |
| Mathematics | 4 |
| Statistics | 3 |