Test #2- Probability

Using the spinner, what is the theoretical probability of stopping on a red section?

• 1/4

• 5/12

• 1/12

• 1/3

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Refer to the spinner shown. The spinner is divided into nine sections with the same area. You spin the spinner 32 times. It stops on a multiple of three 12 times.

How does the experimental probability of stopping on a multiple of three compare to the theoretical probability that the spinner stops on a multiple of three?

• The experimental probability is equal to the theoretical probability.

• The experimental probability is greater than the theoretical probability.

• The experimental probability is less than the theoretical probability.

• The experimental probability cannot be determined.

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.IC.A.1

The spinner shown below was spun 32 times. The results are shown in the table. For which color is the experimental probability of stopping on the color the same as the theoretical probability?

• Red

• Green

• Blue

• Yellow

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.2

A standard six-sided die is rolled. What are the odds that the die shows a “3”?

• 1/24

• 1/5

• 1/6

• 3/6

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Kevin plays a game online with 91 other people. The game is fair, and it will have only one winner. What is Kevin’s probability of winning?

• 1/91

• 91/92

• 1/92

• 90/91

Using a standard deck of playing cards, the 5 of hearts is drawn and kept out. For the next draw, what is the probability that a 9 is drawn?

• 9/52

• 13/52

• 4/51

• 1/13

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

A coin is tossed and a die is rolled. What is the probability that the coin shows tails and the die shows a 1 or 2?

• 1/2

• 1/4

• 1/6

• 1/12

Which of these pairs of events are dependent?

(This question may have more than one correct answer.)

• You flip a coin and get tails. You flip it a second time and get heads.

• You pull your friend's name out of a hat that holds 20 different names, replace the name, then draw out your friend's name again.

• You spin a spinner divided into five equal parts and is numbered 1-5. You get a 3 on the first spin, and then spin again and get a 2 on the second spin.

• You remove a black sock from a drawer without looking, then remove another black sock.

• You choose a blueberry donut randomly from a mixed box and eat it. Then you choose a chocolate donut.

Tags

CCSS.HSS.CP.B.8

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

A bag contains 7 red buttons and 8 blue. Anna selects one button at random, keeps it, and then Jessica selects one button at random from the remaining buttons. Find the probability that both events occur.

Event A: Anna selects a red button.

Event B: Jessica selects a blue button.

• 1/5

• 4/15

• 7/30

• 56/225

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.B.8

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

What is the probability of the spinner landing on 5, then landing on an even number?

• 0.05

• 0.3

• 0.5

• 0.6

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.B.8

CCSS.HSS.CP.A.2