Every time you make popcorn, you are listening to the normal distribution(youtube.com)

2 pointsby strategyvor 12 Jahren3 comments

Every time you make popcorn, you are listening to the normal distribution

http://www.youtube.com/watch?v=YmOsDTczOFs

1 comments

This is interesting, but I'm still not 100% that the graph is not a fake.

It's a pity that the final Gaussian approximation is not correctly fitted. It should be moved to the right.

strategyvor 12 Jahren

Thanks. I can assure you the graph is not fake--I would have make a much closer fit if I had concocted the data. The bell curve fitting was done by hand to be suggestive, sorry I did not do an algorithmic fitting (perhaps I should have done more research on this).

gus_massavor 12 Jahren

If you are using Excel, you should use Average and Stdev to get the parameters and Normdist to draw it. For example, you can read http://excelgraphs.blogspot.com/2013/03/historgrams-and-over... (I don't like how they make the final graphs, but the article explain how to use the functions.) (Be careful, because it's easy to use the wrong x axis, and draw the Gaussian curve shifted 1/2 histogram bar.)

If you like to understand the calculations and use less magical function, you can read http://www.phys.utk.edu/labs/plstatan.pdf . (If you want to read directly the code, go to page 5 to skip the theoretical background.)