NO.PZ2021062201000015
问题如下：
Compared with bootstrap resampling, jackknife resampling:
选项：
A.is done with replacement.
usually requires that the number of repetitions is equal to the sample size.
produces dissimilar results for every run because resamples are randomly drawn.
解释：
B is correct. For a sample of size n, jackknife resampling usually requires n repetitions. In contrast, with bootstrap resampling, we are left to determine how many repetitions are appropriate.
对于大小为 n 的样本，Jackknife resampling通常需要 n 次重复。 相比之下，对于boostrap resampling，我们需要确定合适的重复次数。
RT
