Transcript Basic Probability Notes

Experimental VS. Theoretical
http://www.regentsprep.org/regents/math/algebra/apr5/pra
cemp.htm
http://www.regentsprep.org/regents/math/algebra/apr5/Pra
cThoe.htm
Compound Probability: AND
Compound Probability: OR
http://www.regentsprep.org/regents/math/algebra/apr8/PracAND.h
tm
Independent VS. Dependent Events


Two events are said to be independent if the result
of the second event is not affected by the result of
the first event.
If A and B are independent events, the probability
of both events occurring is the product of the
probabilities of the individual events
 If
the result of one event IS affected by
the result of another event, the events are
said to be dependent.
 If A and B are dependent events, the
probability of both events occurring is the
product of the probability of the first event
and the probability of the second event
once the first event has occurred.
http://www.regentsprep.org/regents/math/algebra/apr6/
PracMut.htm
Mutually Exclusive Events
 Two
events that have NO outcomes in
common are called mutually exclusive.
These are events that cannot occur at the
same time.
http://www.regentsprep.org/regents/math/algebra/a
pr6/PracMut.htm
The Counting Principle
Examples
The Counting Principle also works for
more than two activities…
http://www.regentsprep.org/regents/math/algebra/apr1/prac
cnt.htm
Permutations and Combinations
Permutations
A permutation is an arrangement of objects in
specific order.
The order of the arrangement is important!!
Examples
Permutation practice!
 http://www.regentsprep.org/regents/mat
h/algebra/apr2/PracPerm.htm
Examples
More Examples
http://www.regentsprep.org/regents/math/algtrig/ats5
/pcprac.htm