science:phd-notes:2025-05-13-porter-thomas-fluctuations
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science:phd-notes:2025-05-13-porter-thomas-fluctuations [2025/05/26 12:38] – jon-dokuwiki | science:phd-notes:2025-05-13-porter-thomas-fluctuations [2025/05/26 12:43] (current) – jon-dokuwiki | ||
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- | The law of large numbers tells us that the sample average will converge to the expected value $\mu$ as $n$ goes to infinity. The CLT states that as $n$ gets larger, the distribution of $\bar{X}_n$ gets arbitrarily close to the normal distribution with a mean of 1 and a variance of $2/n$. | + | The law of large numbers tells us that the sample average will converge to the expected value $\mu$ as $n$ goes to infinity. The CLT states that as $n$ gets larger, the distribution of $\bar{X}_n$ gets arbitrarily close to the normal distribution with a mean of 1 and a variance of $2/n$ (The PT distribution has a mean of 1 and a variance of 2). |
Let us quickly check that this is true! Let's say that $n = 1000$ and with some quick Python magic: | Let us quickly check that this is true! Let's say that $n = 1000$ and with some quick Python magic: |
science/phd-notes/2025-05-13-porter-thomas-fluctuations.txt · Last modified: by jon-dokuwiki