Compound Probability Using Models

What is P(A or B) if P(A) = 1/4 and P(B) = 1/2, where A and B are overlapping events?

• 1/7

• 1/12

• 5/8

• 1/2

What is the probability of picking a green marble, keeping it, then picking another green marble?

What is the probability of landing on blue twice in a row?

Draw a red marble, keep it, then draw a blue marble.

• Independent

• Dependent

Flipping a coin then rolling a number cube

• Independent

• Dependent

P(green)

Pick a red marble, replace it, then pick a red marble again

• Independent

• Dependent

What is the probability of rolling a 6 then landing on heads?

What is the probability of drawing a blue marble twice with replacement?

What is the probability of picking a green marble, keeping it, then picking green again?