Independent and Dependent Probabilities

What is the probability of rolling a 2 on a dice AND pulling a spade out of a deck of cards?

• 1 ⁄ 10
• 1 ⁄ 12
• 1 ⁄ 24
• 1 ⁄ 6

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

Geraldo has a deck of cards and a bag of marbles with 4 red, 6 blue, 3 green, and 2 yellow marbles. What is the probability that he draws a 7 out of the deck of cards and then pulls a blue marble out of the bag?

• 3 ⁄ 15
• 2 ⁄ 65
• 7 ⁄ 52
• 14 ⁄ 260

Two marbles are drawn from a container in such a way that the first marble drawn is replaced before selecting the second marble. Does the outcome of the first draw affect the outcome of the second?

• Yes
• No

What is the probability of rolling an even number on the first roll of a number cube and rolling an odd number on the second roll?

• 1/4
• 1
• 1/8
• 1/2

Find the probability of: P(A and not 2)

• 1/12
• 1/6
• 1/2

Find the probability of: P(D and 1)

• 1/12
• 1/24
• 1/8

To find the probability you of an INDEPENDENT event... 

• Find the probability of event #1
• Find the probability of event #2
• Add the probability of both event #1 & event #2
• Multiply the probability of both event #1 & event #2

Clare picks a marble at random, puts it back, and then picks another marble at random.

• Dependent
• Independent