Free Printable Independent and Dependent Probability

Worksheets

Independent and Dependent Probability

Total questions: 15

Worksheet time: 2hrs 39mins

Name

Class

Date

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

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

1 ⁄ 6

1 ⁄ 8

1 ⁄ 2

1 ⁄ 12

Is the event INDEPENDENT or DEPENDENT?
You have a jar with 24 pieces of chocolate candy and 14 pieces of orange candy. 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

Is the event INDEPENDENT or DEPENDENT?

Amy 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

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

Which event is not a dependent event?

Picking 2 students to be the line leader and the door holder from a group of 20 students

Picking 2 marbles from a bag without replacing the first marble

Picking 2 crayons from a box without putting any back

Picking an earring, replacing it, then picking a 2nd earring

Suppose two tiles are drawn from the collection shown. The first tile is not replaced before the second tile is drawn. Find P(A and A)

4/225

1/105

3/71

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(white, then purple, then black)

1/36

2/39

5/41

6/43

Des buys a pack of Starbursts that has 3 orange, 6 pink, 1 yellow, and 5 red Starbursts. She puts the candy in the bowl. If she reaches in and grabs two Starbursts without putting one back, what is the probability that she will pick a pink and then a yellow?

1/35

7/210

6/225

2/75

10.

A bag has 2 yellow marbles and 8 brown marbles. Nancy takes out two marbles without replacing the marbles. What is the probability that they will both be yellow?

2/19

1/10

1/25

1/45

11.

Dependent probability happens when the first item is replaced, causing the total outcomes to increase by 1.

True

False

12.

Independent probability happens when the probability of the first event does not affect the probability of the second event.

True

False

13.

Clinton 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

14.

Suppose a number cube is rolled twice. What is the probability that an odd number will show both times?

1/3

1/2

1/6

1/4

15.

What is the probability of tossing a coin four times and getting tails each time?

1/16

1/8

1/2

1/4

100 %

Independent and Dependent Probability

Total questions: 15

Worksheet time: 2hrs 39mins

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