STT 201 Lecture Notes - Lecture 54: Venn Diagram, Sample Space
19 Jul 2019
School
Department
Course
Professor
Document Summary
Gambler"s fallacy, or "law of averages" psychological prejudice that assumes observations will behave as expected much sooner than necessary. In other words, thinking an event is "due" or "not due" Playing a different lottery number than last week"s winning number because the chances it would come up twice in a row are so small. Building your home in the exact spot that a meteor struck reasoning it would almost impossible for a meteor to strike in the same place twice. A man brings a bomb on a plane. he reasons "the chances of there being a bomb on a plane are so small, so the chances of there being another one are almost zero" Independence: two events a and b are independent if p(a and b)=p(a)*p(b) Example: p(a)= . 3 p(b)= . 5 p(a and b)= . 10. 15 does not equal . 10 so a and b are not independent.
