Answer by zoli for Random Sampling and Probability
Let the number of records be $N$, $X$ of them contain the key word: "dance". The probability of choosing an element with the key word is $\approx\frac X N.$ If we randomly select $M$ records then we...
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What are the possible statistical/mathematical approaches to address the below question?Assume we have 40millions records and X of them may contain a specific word (e.g.,” dance”). We randomly select...
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