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A sample is a subset of a population. Statistics, in general, is concerned with using samples to make inference about the parameters governing a larger (possibly infinite) population.

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This is a follow-up question to How to uniformly sample vertices from a large graph with given distance from a fixed vertex?. Suppose I took a set $B$ of $n$ samples from a large but finite universe … ]$. Knowing $b(x)$ for all $x\in B$, I would like to take a subsample $S\subset B$ of size $|S|=\frac{n}{c}$ for some $c>0$ such that $S$ is a uniform random sample of $U$. To achieve this, my idea …
asked Jul 19 '18 by fuz