ARORA (A Random Or Real Array) is a web game that tests your perception of randomness.

This is how it works:
We collect data from various sources and we show it to you in two windows,
   - one window plots the actual data,
   - the other plots the data randomly permuted (tech note: we permute the derivative of the data).

The game asks you to click on the real, non-random data.

This game is an idea of Jasmina Hasanhodzic, Andrew W. Lo, and Emanuele Viola

Programming by Dolphy Fernandes and Emanuele Viola

For any comment or questions, write to

Version of Oct/19/2009. Copyright 2009