| 单词 | degrees of freedom |
| 释义 | degrees of freedom The number of variables in a set which can vary independently. For example, if N variables xi, i = 1, 2, …, N, are to have a mean μ, then there are only N - 1 degrees of freedom in choosing them, since once any N - 1 are chosen the remaining one is determined, as the mean is defined as |
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