The CLT
Suppose that you lived in a town with a population whose weights had a mean of 180lbs and a standard deviation of 9lbs. Now, some people in this town underwent a weight reduction program, and you want to know if it had a significant effect. Did the "intervention" work…
Distributions
Last week I did a thread on the law of large numbers (LLN): https://twitter.com/rahuldave/status/1425883481821704192 or https://stories.univ.ai/lawoflargenumbers/. The essence was that the mean of N random variables drawn from a distribution converge to the mean µ of the distrib…
The LLN
Suppose that you toss a fair coin and catch it to see if you got heads or tails. Then you have this intuition that while you might get a streak of several heads in a row, in the long run the heads and tails are balanced. This is actually an example of a famous law: the Law of…