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math and applied math
:
discipline of physics
>
Cling return sample
Contents
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No. 1
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English Expression
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More results...
No. 1
以从一个口袋中取球为例,每次随机地取一只,每次取一只球后放回袋中,搅匀后再取一球,这种取球方式为放回取样。
每次取一只球后不放回袋中,下一次从剩余的球中再取一球,这种取球方式为不放回取样。
English Expression
: Cling return sample