| 单词 | mean-square deviation |
| 释义 | mean-square deviation [`mēn `skwer dē·vē`ā·shǝn] STATISTICS A measure of the extent to which a collection v1,v2, ..., vn of numbers is unequal; it is given by the expression (1/n )[(v1 - ν̄ )2 + . . . + (vn - ν̄ )2], where ν̄ is the mean of the numbers. |
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