File:Law of large numbers.gif

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Original file (1,000 × 600 pixels, file size: 21 KB, MIME type: image/gif)

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Description
English: A plot of the average of n simulated independent Bernoulli trials (each taking a value of +/- 1) to show the law of large numbers and the law of the iterated logorithm.

The graphical difficulty here is that we want to show details for very large values of n. If the y-axis were left untransformed, all we could see is that it converges to zero. If we used a log transformation it would be upset with the negative values. So the y is transformed by something that is very close to a log transformation, namely, y^.12. (The .12 looks nice. Other small powers look about the same.)

Humans are very good at seeing "straight lines". So if we transform the x-axis to be almost log also we can make the upper and lower envelopes look almost straight. The correct power is -1/2 of the power used for the y axis.

So the plot is x^-.06 vs y^.12. These are basically "log(x)" vs "log(y)". But by using these values, the natural square root behaviour now is a straight line. If you have suggestions for improving the image, let me know and I can generate a new one.

A detailed view of the right hand most "pixel" is:

Date
Source Own work
Author Dean P Foster


[(untransformed, de-transformable, de-transformably{7.28.09; 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019; 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029})

(untransformed, de-transform, de-transforms; de-transformation, de-transforming, de-transformed{6.29.12, 2013, 2014, 2015, 2016, 2017, 2018, 2019; 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029})]

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File history

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Date/TimeThumbnailDimensionsUserComment
current11:53, 15 May 2009Thumbnail for version as of 11:53, 15 May 20091,000 × 600 (21 KB)Dean P Foster (talk | contribs)Why won't it accept this file???
11:51, 15 May 2009Thumbnail for version as of 11:51, 15 May 20091,000 × 600 (21 KB)Dean P Foster (talk | contribs)Reverted to version as of 11:44, 15 May 2009. THis is the correct file
11:49, 15 May 2009Thumbnail for version as of 11:49, 15 May 20091,000 × 600 (21 KB)Dean P Foster (talk | contribs)one more time! added sqrt(n)
11:46, 15 May 2009Thumbnail for version as of 11:46, 15 May 20091,000 × 600 (21 KB)Dean P Foster (talk | contribs)added sqrt(n) line
11:45, 15 May 2009Thumbnail for version as of 11:45, 15 May 20091,000 × 600 (15 KB)Dean P Foster (talk | contribs)oops wrong file
11:44, 15 May 2009Thumbnail for version as of 11:44, 15 May 20091,000 × 600 (21 KB)Dean P Foster (talk | contribs)added sqrt(n) line
19:55, 13 May 2009Thumbnail for version as of 19:55, 13 May 20091,000 × 600 (15 KB)Dean P Foster (talk | contribs){{Information |Description={{en|1=A plot of the average of +/-1 bernulli trials to show the law of large numbers and the law of the iterated logorithm. }} |Source=Own work by uploader |Author=Dean P Foster |Date= 2009-05-09 |Permis

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