In probability theory, to say that two events are independent (alternatively statistically independent, marginally independent or absolutely independent) means that the occurrence of one does not affect the probability of the other. Similarly, two random variables are independent if the observed value of one does not affect the probability distribution of the other.
The concept of independence extends to dealing with collections of more than two events or random variables.
Famous quotes containing the word independence:
“It is my duty to prevent, through the independence of Cuba, the U.S.A. from spreading over the West Indies and falling with added weight upon other lands of Our America. All I have done up to now and shall do hereafter is to that end.... I know the Monster, because I have lived in its lair—and my weapon is only the slingshot of David.”
—José Martí (1853–1895)