## Too Long; Didn't Read

The Central Limit Theorem captures the following phenomenon:
Take any distribution! (say a distribution of the number of passes in a football match)
Start taking n samples from that distribution (say n = 5) multiple times [say m = 1000] times.
Take the mean of each sample set (so we would have m = 1000 means)
The distribution of means would be (more or less) normally distributed. (You will get that famous bell curve if you plot the means on the x-axis and their frequency on the y-axis.)
Increase n to get a smaller standard deviation and increase m to get a better approximation to normal distribution.