Generating truly random numbers is not as easy as it sounds. Using a radioactive source is one way of doing it:
Random Numbers - Numberphile
... see the outcome in the second part (we'll cover the Gaussian distribution and its transformations later):
Random Numbers (the next bit) - Numberphile
Another way is using atmospheric noise, this is how random.org works.
Here are four quite interesting random variables:
The Most Powerful Dice - Numberphile
And finally a curious distribution that helped spotting suspicious economic data:
Benford's Law - How mathematics can detect fraud!
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