Randomness

Randomness is a tricky thing. Open up a text document and put your a finger on two different keys (for instance 1 and 0). Now very rapidly type a sequence of those two characters (taking about five seconds to do so), but try to make the sequence as random as possible.

Here is what I got:

1010100000100001010100100101011010101011

How random is your sequence? (Mine is pretty nonrandom.) Think about ways of measuring its randomness.