26.126.1Theoretical ProbabilityTheoretical Probabilityp. 580p. 580

Introduction: Quick Review Objective: To write theoretical probability of an event Vocab: 1.outcome= one possible outcome2.sample space= set of ALL possible outcomes3.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.

26.326.3OddsOddsp. 586p. 586

Introduction: Quick Review Objective: To write odds in favor and against an event Vocab: 1.odds in favor of an event= one possible outcome2.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 _____ : ______

___/___, _____ to _____, or _____ : ______

26.526.5experimental probabilityexperimental probabilityp. 590p. 590

Introduction: Quick Review Objective: To write odds in favor and against an event Vocab: 1.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