Benford's Law and Zipf's Law
Library Home 
Full Table of Contents 
Suggest a Link 
Library Help
http://www.cuttheknot.org/do_you_know/zipfLaw.shtml  


Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny  
With the eerie but uniform distribution of digits of randomly selected numbers, if the numbers under investigation are not entirely random but somehow socially or naturally related, the distribution of the first digit is not uniform. One may expect 1 to be the first digit of a random number in about 30% of cases, 2 will come up in about 18% of cases, 3 in 12%, 4 in 9%, 5 in 8%, etc. This is known as Benford's Law.  


Levels:  High School (912), College 
Languages:  English 
Resource Types:  Problems/Puzzles 
Math Topics:  Probability 
[Privacy Policy] [Terms of Use]
© 1994 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Drexel University School of Education.