We know that , Bell’s inequality lead critical decision about locality of the quantum physics and it’s experimental results !. But, if it is the case that classical probability theory(present day probability theory) is incomplete and fail to predict the nature of observation of quantum mechanical experiments ?. What’s your idea about kind of a most general probability theory can be call as complex probability , in complex number plain ? (Note-there is a paper BELL'S INEQUALITY AND COMPLEX INTERPRETATION OF PROBABILITY)