- PiDownload .TXT file Open in Data Desk
^{ ?}Link **Methods:**Chi Square Tests**Source:**pi**Number of Cases:**10**Story:**Many people know the mathematical constant p is approxi-mately 3.14. But that’s not exact. To be more precise, here are 20 decimal places: 3.14159265358979323846. Still not exact, though. In fact, the actual value is irrational; a decimal that goes on forever without any repeating pattern. But notice that there are no 0’s and only one 7 in the 20 initial values. Does that pattern persist? Or do all the digits show up with equal frequency? The data show the number of times each digit appears in the first million digits.

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