Sometimes you'll see a mu, and sometimes you'll see an x with a line over it for the sample mean.
有时您会看到一个 mu，有时您会看到一个 x，上面有一条线表示样本均值。
| 单词 | mu mu |
| 例句 |
原声例句
可汗学院：统计学（视频版） Sometimes you'll see a mu, and sometimes you'll see an x with a line over it for the sample mean. 有时您会看到一个 mu，有时您会看到一个 x，上面有一条线表示样本均值。 |
| 随便看 |
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