Probability of Dependent and Independent Events

Is the event INDEPENDENT or DEPENDENT?
The spinner is spun twice.  What is the probability that it lands on red first and then blue?

• Independent

• Dependent

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced. P(purple then black)

• 1/18

• 2/5

• 3/7

• 4/9

You draw a marble from a bag that has 4 red, 2 blue, and 3 green, you also flip a fair coin. What is the probability you will draw a blue marble and flip a heads?

• 1/9

• 3/9

• 3/6

• 5/6

P(1 and A)

• 1/16

• 1/10

• 4/16

• 1/4

A bag contains 5 yellow, 4 green, and 2 blue marbles. One marble is drawn and immediately put back in the bag. Then a second marble is drawn. Identify whether the events are independent or dependent.

• Independent

• Dependent

Clara picks a marble at random, puts it back, and then picks another marble at random.

• Dependent

• Independent

Pablo chooses a colored marble from a mixed bag and writes down the color. Pablo leaves it out and then draws another.

• Independent

• Dependent

The outcome of one event does NOT influence the outcome of the other event

• independent event

• tree diagram

• simple event

• odds

The outcome of one event DOES influence the outcome of the other event

• mutually exclusive event

• probability

• dependent event

• simple probability

P(2 then 5) = 

• 1/6

• 1/12

• 1/36