26.1 Theoretical Probability p. 580 Introduction: Quick Review Objective: To write theoretical probability of an event Vocab : outcome= one possible outcome.

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Presentation transcript:

26.1 Theoretical Probability p. 580 Introduction: Quick Review Objective: To write theoretical probability of an event Vocab : outcome= one possible outcome sample space= set of ALL possible outcomes theoretical probability= P, number of FAVORABLE to POSSIBLE results: P (event) = number of favorable outcomes/number of possible outcomes Glossary

Guided Instruction: Example 5: Finding the probability of an event - Suppose you have a number cube labeled 3, 6, 9, 12, 15, 18. Find each probability and the P(not 12) and write as a fraction, decimal and %. P (Number divisible by 3): P (12): P (not 12) Josh played in ____ games.

26.3 Odds p. 586 Introduction: Quick Review Objective: To write odds in favor and against an event Vocab : odds in favor of an event= one possible outcome odds against an event= set of ALL possible outcomes Glossary

Guided Instruction: Example 2: Finding the odds in favor/against an event BOOKKEEPER A. Odds in FAVOR of choosing O (favorable 2, unfavorable 8) = ___/___, _____ to _____, or _____ : ______ B. Odds AGAINST choosing K or P (unfavorable 7, favorable 3) = ___/___, _____ to _____, or _____ : ______

26.5 experimental probability p. 590 Introduction: Quick Review Objective: To write odds in favor and against an event Vocab : experimental probability= number of times a favorable outcome actually occurs compared w/ the total number of times you do an activity: experimental probability = number of favorable outcomes that occur/total number of trials Glossary

Guided Instruction: Example 1: Finding the experimental probability of an event Green (2), Red (10), Yellow (13) P (green) = 2/25,.08, 8% P (red) = 10/25=2/5,.40, 40% P (yellow) = 13/25,.52, 52% Theoretical Probability?? Pablo had 10 green __________, 50 red __________, and 40 yellow_____________

RECAP : Match the vocab word with its definition one possible outcome set of ALL possible outcomes one possible outcome number of times a favorable outcome actually occurs compared w/ the total number of times you do an activity: experimental probability = number of favorable outcomes that occur/total number of trials set of ALL possible outcomes P, number of FAVORABLE to POSSIBLE results: P (event) = number of favorable outcomes/number of possible outcomes outcome odds in favor of an event sample space experimental probability theoretical probability odds against an event I = prt