If A and B are the events associated with a random experiment then
provided P(A)≠ 0
and
provided P(B)≠ 0
If A, B and C are three events associated with a random experiment, then
If A1, A2....An are associated with a random experiment, then
Two events are called independent if the occurrence or non-occurence of one does not affect the probability of the occurence
of the other.
Two events A and B associated with a random experiment are independent if
provided P(B)≠ 0
and
provided P(A)≠ 0
Also
If A1, A2....An associated with a random experiment are independent then
If A, B are independent events, then so are
or
or
or
Copyright © Tutors4you.com