There used to be an ABX plugin for Foobar, where you could test yourself if you could make out the difference between an MP3 of your choice and a lossless one.
I think I scored worse than a coin flip when it came to 320 files
I think I scored worse than a coin flip when it came to 320 files
If you cannot distinguish, you will be the same as a coin flip; i.e. random.
Anyway, not to take this sub-thread too seriously, but obviously it depends how reproducible your deviation from 50-50 is :-)