video WARM-uP Lesson 33 + brain break Exit card

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Presentation transcript:

video WARM-uP Lesson 33 + brain break Exit card Agenda video WARM-uP Lesson 33 + brain break Exit card

Warm-up Simplify. 1. 4 5 . 15 22 2. 18 55 . 15 22

Lesson 33: finding the probability of independent and dependent events Independent events Rolling a 6-sided die, then flipping a coin P(4 and H) = In general, P(A and B)=

Dependent events: A bag has 5 red marbles, 3 blue marbles and 2 green marbles. What is the probability of picking a red marble, not returning it to the bag. Then picking another red marble? P(A and B) =

Identify each set of events as dependent or independent Tossing the same coin twice Picking 2 students’ sticks without replacement

A bag has 5 ten-dollar bills and 15 one-dollar bills Find the probability of drawing a one-dollar bill, keeping it, and then drawing a ten-dollar bill. Find the probability of drawing a ten-dollar bill, keeping it, and then drawing another ten-dollar bill.

odds Odds are another way of describing the likelihood of an event. Odds for: # 𝒐𝒇 𝒇𝒂𝒗𝒐𝒓𝒂𝒃𝒍𝒆 # 𝒐𝒇 𝒖𝒏𝒇𝒂𝒗𝒐𝒓𝒂𝒃𝒍𝒆 Odds against: # 𝒐𝒇 𝒖𝒏𝒇𝒂𝒗𝒐𝒓𝒂𝒃𝒍𝒆 # 𝒐𝒇 𝒇𝒂𝒗𝒐𝒓𝒂𝒃𝒍𝒆

What are the odds of spinning a 2 What are the odds of spinning a 2? What are the odds against spinning a blue less than 6?

The honor council has 3 boys and 3 girls The honor council has 3 boys and 3 girls. The chess club has 7 boys and 3 girls. Each group will choose a member at random to be the president. What is the probability that both presidents will be girls? Both girls resign and a different pair of students is chosen What is the probability that both presidents will again be girls?