Study Guide Unit 9

Determine if each event is Independent or Dependent. Rolling a six-sided die and then flipping a coin.

• Independent

• Dependent

Determine if each event is Independent or Dependent. Selecting a green ball from a bag, keeping it, and then selecting another ball.

• Independent

• Dependent

Determine if each event is Independent or Dependent. Choosing a card from a deck, replacing it, and then choosing another card.

• Independent

• Dependent

Determine if each event is Independent or Dependent. Drawing a black sock from a drawer, wearing it, and then drawing another sock.

• Independent

• Dependent

Determine if each event is Independent or Dependent. Spinning a spinner, not touching it, and then rolling a die.

• Independent

• Dependent

Ethan spins a fair spinner with four equal sections numbered 1 through 4 and rolls a six-sided die once. What is the probability that Ethan spins a 3 and rolls an even number?

• A. 1/12

• B. 1/8

• C. 1/6

• D. 1/4

Daniel has a jar of marbles containing 5 blue, 9 red, 6 green and 7 yellow marbles. What is the probability that he will randomly draw a yellow marble and then a red marble without replacement?

• 1/20

• 7/78

• 2/25

• 5/81

A box contains 15 green pencils and 25 yellow pencils. Alex randomly selects a yellow pencil and then returns it to the box. He then randomly selects another yellow pencil. What type of event is the second selection?

• Favorable

• Dependent

• Independent

• Complementary

Sophia has a bag containing 3 yellow marbles, 7 green marbles and 6 orange marbles. What is the probability that she will randomly select one orange marble and then one green marble without replacement?

• 7/40

• 9/38

• 21/80

• 1/5

Liam’s pocket contains a total of 10 coins: 4 quarters, 2 dimes, 1 nickel and 3 pennies. Without looking, Liam will pull 2 coins out of his pocket. What is the probability that both coins will be quarters?

• 1/45

• 3/45

• 6/50

• 2/15