Probability Practice

A bag contains 5 blue marbles, 4 red marbles, and 3 orange marbles. Mrs. Cox picks one without looking, replaces it and picks another one. What is the probability that she picks two that are not orange? 

• 9/16
• 3/4
• 9/144
• 5/16

You have a bag of 17 marbles.  Four are blue, 6 are green, 2 are red, and the others are yellow.  What is the probability of drawing a green marble, putting it aside, and then drawing another green marble?

• 15/136
• 30/289
• Other

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

You have a bag of 17 marbles.  Four are blue, 6 are green, 2 are red, and the others are yellow.  What is the probability of drawing a red marble, putting it aside, and then drawing a green marble?

• 1/136
• 2/17
• 3/68

A coin and a number cube with the numbers 1 through 6 are tossed. What is the probability of the coin showing tails and the number cube showing the number 3? 

• 1/12
• 1/4
• 1/8
• 1/2

The letters that form the word ALGEBRA are placed in a bowl.

What is the probability of choosing a letter that is NOT “A”?

Tags

CCSS.7.SP.C.7B

if the outcome of one event has no effect on the outcome of a second event, then the two events are called ____.

• Probability

• Independent Events

• Dependent events

• Conditional probability

Tags

CCSS.HSS.CP.A.5

What is the probability that a randomly selected student plays sports given that they do not do community service?

Tags

CCSS.HSS.CP.A.4

What is the probability that a student plays sports given that they do community service?

Tags

CCSS.HSS.CP.A.4

The outcome of one event does influence the outcome of the other event.

• mutually exclusive event
• probability
• dependent event
• simple probability

Tags

CCSS.HSS.CP.A.5