Probability of Compound Events (Independent and 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

Mrs. Cole has to choose two pieces of fruit for her lunch.  If she randomly takes two pieces of fruit from a bowl of 8 oranges and 8 apples, what is the probability she will choose two apples?  (Mrs. Cole does not put back the first piece of fruit before she takes the second piece of fruit)
P(apple, apple)

• 1/4

• 7/30

• 1/32

• 1/64

Which compound event if composed of dependent events?

• Selecting a candy bar from a bag eating the candy bar and selecting again

• Selecting a candy bar from a bag, deciding you don't want it, replace the candy bar and select again.

A coin is tossed and then the spinner is spun. Determine the probability that you toss Heads and spin a Red.

• 1/6

• 1/10

• 0

• 1/12

Is the following compound event independent or dependent
P(1 and A)

• Independent

• Dependent

Flip a coin two times

• Independent

• Dependent

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

P(2 then 5) = 
*Hint: This is a compound event! To find the probability of a compound event, MULTIPLY the probability of each simple event.

• 1/6

• 1/12

• 1/36

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

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