| 单词 | population variance |
| 释义 | population variance [´päp·yǝ`lā·shǝn `ver·ē·ǝns] STATISTICS The arithmetic average of the numbers (v1-v̄ )2,..., (vN-v̄ )2, where vi are numbers obtained from a population with N members, one for each member, and v̄ is the population mean. |
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