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UNIT 8: PROBABILITY7TH GRADE MATH
MS. CARQUEVILLE
CHAPTER 6-9: PROBABILITY AND
PREDICTIONSVOCABULARY
•OUTCOMES: POSSIBLE RESULTS OF A PROBABILITY EVENT.
•SIMPLE EVENT: THE OUTCOME OR COLLECTION OF OUTCOMES.
•PROBABILITY: THE RATIO OF THE NUMBER OF WAYS A CERTAIN EVENT CAN OCCUR TO THE NUMBER OF POSSIBLE OUTCOMES.
•SAMPLE SPACE: THE SET OF ALL POSSIBLE OUTCOMES.
•THEORETICAL PROBABILITY: WHAT SHOULD OCCUR IN A PROBABILITY EXPERIMENT.
•EXPERIMENTAL PROBABILITY: WHAT ACTUALLY OCCURS IN A PROBABILITY EXPERIEMENT.
CHAPTER 12-6: COUNTING OUTCOMES
VOCABULARY
•TREE DIAGRAM: A DIAGRAM USED TO SHOW THE TOTAL NUMBER OF POSSIBLE OUTCOMES.
•FUNDAMENTAL COUNTING PRINCIPLE: IF EVENT M OCCURS IN WAYS AND IS FOLLOWED BY EVENT N THAT CAN OCCUR IN WAYS, THEN THE EVENT M FOLLOWED BY EVENT N CAN OCCUR IN WAYS.
CHAPTER 12-8: ODDSVOCABULARY
•ODDS: A WAY TO DESCRIBE THE CHANCE OF AN EVENT OCCURRING.
CHAPTER 12-9: PROBABILITY OF COMPOUND EVENTS
VOCABULARY
•COMPOUND EVENTS: 2 OR MORE SIMPLE EVENTS.
•INDEPENDENT EVENTS: TWO OR MORE EVENTS IN WHICH THE OUTCOME OF ONE EVENT DOES NOT INFLUENCE THE OUTCOME OF THE OTHER EVENT(S).
•MUTUALLY EXCLUSIVE EVENTS: TWO OR MORE EVENTS THAT CANNOT HAPPEN AT THE SAME TIME.