Can You Have A Negative P X?
Can You Have A Negative P X? A “negative” random variable is one that is always negative – that is: P(X<0)=1. Similarly, for “positive,” P(X>0)=1. Can a probability distribution be negative? The probability of the outcome of an experiment is never negative, although a quasiprobability distribution allows a negative probability, or quasiprobability for some events.