urandom ent

Entropy = 7.999903 bits per byte.

Optimum compression would reduce the size
of this 2000000 byte file by 0 percent.

Chi square distribution for 2000000 samples is 268.67, and randomly
would exceed this value 50.00 percent of the times.

Arithmetic mean value of data bytes is 127.4955 (127.5 = random).
Monte Carlo value for Pi is 3.144567145 (error 0.09 percent).
Serial correlation coefficient is -0.000073 (totally uncorrelated = 0.0).