I try to measure the randomness of data using the runs test (beside the chi square test). I get following values for a file produced by /dev/urandom:
79881944 Bits (total) 39933862 zeroes 39948082 ones 0.546894 variance 39940971 expected 39941409 runs =================== Runs value: 591.281
I read the value must be between -1,96 and +1,96 to talk about randomness. Can anyone tell me why this is impossible to reach!?
thanks in advance!