Sensor Four

This sensor uses the light levels detected by a small camera as the seed for a random number generator. How does this work?

The most recent number was generated at ...

Total numbers generated by this robot: ...

Randomness

This robot currently has a χ² of ... and a P-value of .... (How is this calculated?)

Variance

This is a visualisaion of the most recent ... numbers generated by this robot. Similar numbers are a similar colour, so if you can see patterns then the result is not really random. A truly random number generator should should look like white noise, with no patterns in it.

Some recent numbers