Independent and Dependent Probability Review

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

• 1 ⁄ 16
• 1 ⁄ 2
• 1 ⁄ 4
• 1 ⁄ 8

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Tom will randomly select from a treat bag containing 6 lollipops and 4 gum balls. What is the probability that Tom will select a lollipop, replace it, and then select a gum ball.

• 1/24

• 1/90

• 6/25

• 1/10

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.8

Two fair coins are flipped at the same time. What is the probability that both with display heads?

• 1/2

• 1/4

• 2%

• 1%

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Is the event independent or dependent?

A bag contains 5 striped cubes, 3 dotted cubes, 4 white cubes and 3 red cubes. What is the probability of drawing a red cube, replacing it, and then drawing a white cube?

• independent

• dependent

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Is the event independent or dependent?

Your pocket contains 3 pennies, 2 nickels, 1 quarter and 4 dimes. What is the probability of randomly choosing a dime, replacing it, and then drawing a penny?

• independent

• dependent

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Is the event independent or dependent?

German has a bag of Skittles™. Inside the bag are 6 red, 4 orange, 7 yellow, 3 purple and 4 green Skittles™. What is the probability of drawing a green Skittle™, replacing it, and then drawing another green Skittle™?

• independent

• dependent

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Is the event independent or dependent?

A basket contains 4 green marbles and 8 blue marbles. A marble is drawn without replacement. Then another marble is drawn. What is the probability that both marbles will be green?

• independent

• dependent

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Is the event independent or dependent?

You have a jar with 24 pieces of chocolate candy and 14 pieces individually wrapped starburst. We take one piece of candy at random from the jar, put it back, and then take a second piece of candy at random from the jar.

• independent

• dependent

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.4

CCSS.HSS.CP.B.8

Is the event independent or dependent?

Katana plays card games. She picks a card at random. Then without putting the first card back, she picks a second card at random.

• independent

• dependent

Tags

CCSS.7.SP.C.8

Is the event independent or dependent?

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?

• dependent

• independent

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8