Independence (probability theory)
![](/Images/godic/202502/13/Nuvola_apps_atlantik3809.png")
![Pairwise independent, but not mutually independent, events.](/Images/godic/202502/13/Pairwise_independent.svg3809.png")
![Mutually independent events.](/Images/godic/202502/13/Mutually_independent.svg3809.png")
In probability theory, two events are independent, statistically independent, or stochastically independent if the occurrence of one does not affect the probability of the other. Similarly, two random variables are independent if the realization of one does not affect the probability distribution of the other.