Successful Outcomes from Two Independent Events

Two coins are flipped.  What is the probability that both coins land on heads? Select the correct percentage.

• 10%

• 50%

• 75%

• 25%

Derek is selecting a sock from his drawer. He chooses a sock at random and then randomly selects a second sock. What is the probability that Derek selected a striped sock both times?

• 1/12

• 5

• 1/3

• 1/15

Two number cubes are rolled. The probability that the first number cube shows a five and the other number cube shows an even number is _?

• 1/12

• 1/2

• 2/3

• 1/16

The spinner is spun twice. What is the probability of spinning a triangle and then spinning a heart?

(a)  

A marble bag contains 3 red marbles, 4 gray marbles, 6 white marbles, and 5 black marbles. What is the probability of randomly drawing a red marble and then a gray marble if the first marble is replaced?

• 1/9

• 1/27

• 1/6

• 2/9

What is the probability of rolling a die and landing on a 4, and then rolling the die again and landing on any even number?

• 1 ⁄ 6

• 1 ⁄ 8

• 1 ⁄ 2

• 1 ⁄ 12

Marietta picks a candle from the bunch, replaces it, and then selects one again. What are the chances that she selects a green both times?

• 1/144

• 1/12

• 1/36

• 2/24

• 2/12

Ricardo has the spinner pictured here and a bag of marbles filled with 2 reds, 3 greens, and 3 blues. What is the probability that Ricardo spins red on the spinner then picks a red marble out of the bag?

• 1 ⁄ 16

• 1 ⁄ 2

• 1 ⁄ 4

• 1 ⁄ 8

There are six nickels and seven dimes in your pocket. You randomly pick a coin out of your pocket and then return it to your pocket. Then you randomly pick another coin. What is the probability that both times the coin is a nickel?

• 6/13

• 2/7

• 5/16

• 3/19

• 36/169

What is the probability that Tom will get a lollipop, replace it, then draw a gumball? The treat bag containing 6 lollipops and 4 gum balls

• 1/24

• 1/90

• 6/25

• 1/10