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Lesson 53 – Introduction to Probability Math 2 Honors - Santowski
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(A) Probability of Single Events Define a formula for probability Ex 19C; HH book, Q1,4,5,6,8,9 for in class examples Textbook; S10.1, p633; Q4,6,7,12-19
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(B) Probability of Compound Events Compound events means that two (or more) events occurring (a) Mutually exclusive events when the two events have NOTHING in common Example (b) Inclusive events when there is some “overlap” or something in common in the 2 events Example
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(C) Notations p(A) probability of event A occurring probability that A WILL NOT happen (referred as the COMPLEMENT of A) p(both A and B) probability that BOTH A and B happen Multiplication Law p(either A or B) probability that EITHER A or B happen Addition Law
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(D) Probability Rules – Addition Rule If we have compound events, then we have the following two formulas to work with (a) for INCLUSIVE events: (b) for EXCLUSIVE events
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(E) CW/HW Classwork http://clemmerfinite.wikispaces.com/file/view/unit+3+hom ework+_all+in+one_.pdf http://clemmerfinite.wikispaces.com/file/view/unit+3+hom ework+_all+in+one_.pdf S10.4; p656; Q6-27, 36-41
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(F) Independent/Dependent Events If we want to consider the probability of event A AND event B occurring, we must introduce 2 new terms Two events can be considered INDEPENDENT or DEPENDENT events If two events are INDEPENDENT, then the occurrence of event A does NOT have an effect on the probability of event B A does not affect B EXAMPLES If two events are DEPENDENT, then the occurrence of event A DOES have an effect on the probability of event B
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(G) Internet links http://www.edhelper.com/math/probability6.htm http://www.edhelper.com/math/probability6.htm http://www.snapdrive.net/files/563396/PROBABILITY/WORKS HEET%205%20Multiply%20Probability.pdf http://www.snapdrive.net/files/563396/PROBABILITY/WORKS HEET%205%20Multiply%20Probability.pdf http://clemmerfinite.wikispaces.com/file/view/unit+3+homewor k+_all+in+one_.pdf http://clemmerfinite.wikispaces.com/file/view/unit+3+homewor k+_all+in+one_.pdf http://edhelper.com/probability.htm http://edhelper.com/probability.htm http://www.worksheetworks.com/pdf/b9f/992c3d31a750/Work sheetWorks_Independent_Compound_Events_1.pdf http://www.worksheetworks.com/pdf/b9f/992c3d31a750/Work sheetWorks_Independent_Compound_Events_1.pdf http://www.mathgoodies.com/lessons/vol6/independent_events.html http://www.mathgoodies.com/lessons/vol6/independent_events.html http://www.tutorvista.com/q/probability-independent-&- dependent-events/87000/ http://www.tutorvista.com/q/probability-independent-&- dependent-events/87000/
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