Estimating the prevalence of rare events — theory and practice
The Unofficial Google Data Science Blog
AUGUST 27, 2019
The measurement may be biased if our samples are generated from a procedure that samples without replacement, such as reservoir sampling , especially if some items have disproportionate weight, i.e., $p(v_i) cdot n$ is large. 2] Lawrence Brown, Tony Cai, Anirban DasGupta (2001). Statistics in Biopharmaceutical Research, 2010. [4]
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