unit 8: probability 7 th grade math ms. carqueville

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.