Do Now: March 14th Mar 16: Write a statement about the relationship between the probability of an event and the probability of the complement of the event.

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Presentation transcript:

Do Now: March 14th Mar 16: Write a statement about the relationship between the probability of an event and the probability of the complement of the event. Give examples to support your statement.

Lesson 21-2: Theoretical and Estimated Probabilities March 16, 2016

Today’s Objectives: Calculate theoretical probabilities for a probability experiment. Estimate probabilities by observing outcomes of a probability experiment. Compare theoretical and estimated probabilities.

Notes Theoretical Probability 30/40 = 3/4 Milk Chocolate

Estimated 13/20 Probability 13/20 = /40 = 0.75

Bag OneIt has more milk chocolate

Notes 7/15

Notes 7/15

Rotation: Group 1Group 2Group 3Group 4 1 st THAM 2 nd HMTA 3 rd MAHT 4 th ATMH

Exit Ticket: Mar 16: Exit Ticket: A brown paper bag contains 100 plastic chips. Of these chips, 30 are red, 50 are green, and 20 are blue. A chip will be selected at random from this bag. Calculate the probability that the selected chip is green. Is the probability that you just calculated a theoretical probability or an estimated probability? Why?