Probability Review

What is sample space?

• All of the Outcomes
• What Will Happen
• What Can Happen
• What I want to Happen

Find the probability of: P(A and 2)

• 1/12

• 1/6

• 1/2

• 3/10

Which event is not a dependent event?

• Picking 2 students to each be line leader and 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 at the same time (simultaneously) 
• Picking an earring, replacing it, then picking a 2nd earring

Tags

CCSS.HSS.CP.A.5

There are 4 black marbles and 2 white marbles in a bag, what is the probability of choosing a black marble, not replacing it and then choosing white.

• 4/15
• 3/17
• 2/5
• 2/19

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Identify the following scenario as experimental or theoretical:

Jr. is flipping a cup. He knows there are three ways the cup can land, top, bottom or side. He concludes there is a 1/3 chance that the cup will land on its side.

• Experimental

• Theoretical

A store sells shirts that are either small, medium, or large. The colors are either red, blue, green, or white. What is the probability someone will select a large green shirt?

• 1/3
• 1/7
• 1/9
• 1/12

Tags

CCSS.7.SP.C.8B

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

How many total outfit options are represented?

• 12
• 22
• 3

When would you expect the experimental probability to get CLOSER to the theoretical probability?

• There's no way to expect this to happen.

• The fewer number of trials performed.

• The more trials performed.

Twenty-five people were asked which of the four gifts was their favorite.  Which gift was favored 16% of the time?

• Flowers
• Perfume
• Jewelry
• Clothing

Tags

CCSS.6.SP.B.5A