Compound Probability

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

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

• Independent

• Dependent

What is the probability of flipping a coin twice and landing on Tails both times?

Flipping a coin then rolling a number cube

• Independent

• Dependent

P(blue)

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

A number cube is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll? 

• 2/3

• 5/36

• 1/9

• 1/36

A bag contains 50 lottery balls, numbered 1-50. A ball is chosen at random, then a month of the year is selected. What is the probability of choosing a multiple of 3 and a month starting with the letter “M”?

• 7/50

• 8/125

• 1/20

• 4/75

The two spinners above are spun. What is the probability of getting a perfect square (1,4,9,16), then the letter Z? 

• 3/20

• 9/20

• 1/8

• 11/40

Kaylee has 1 red, 3 blue, 2 brown, 5 black, 1 purple, and 4 pairs of pink flip-flops in her closet. Assuming she always replaces them, what is the probability that she will choose a blue pair on Monday and a pink pair on Tuesday?

• 3/8

• 4/75

• 3/64

• 15/32