Probability Practice Test

You have a bag that contains 30 red marbles and 15 blue marbles. What is the likelihood that you will reach into the bag and pull out a green marble?

• Impossible

• As likely as not

• Certain

• Unlikely

• Likely

The weatherman says that there is a 40% chance of snow. What is the likelihood that it will NOT snow?

• Impossible

• As likely as not

• Certain

• Unlikely

• Likely

What is the likelihood of spinning the spinner and having the arrow stop on 5?

• Impossible

• As likely as not

• Certain

• Unlikely

• Likely

What is the probability that you will spin the spinner and the arrow will land on a number that is NOT red?

• Impossible

• As likely as not

• Certain

• Unlikely

• Likely

Which event is most likely to occur?

• Spinning a spinner on a wheel divided into 5 sections and having the arrow stop on a number less than 4.

• Rolling a six-sided dice and getting a number less than 2.

• Picking a blue marble from a bag that has 5 red marbles, 3 green marbles, and 6 blue marbles.

• Flipping a coin and having it land on tails.

The table below shows the results of Earl drawing a marble out of a bag 30 times. Based on this table, how likely is it that Earl will draw a yellow marble next?

• Impossible

• As likely as not

• Certain

• Unlikely

• Likely

A new store is giving away magazine subscriptions to new customers. There is a 15% chance of getting a nature magazine, a 30% chance of getting a fashion magazine, a 35% chance of getting a news magazine, and a 20% chance of getting a photography magazine. Is it more likely that a customer gets a fashion magazine or a nature magazine.

• The customer is more likely to get a fashion magazine than a nature magazine.

• The customer is more likely to get a nature magazine than a fashion magazine.

• The two types of magazines are equally likely.

Frankie's science class has 20 lab tables and 32 students. What is the likelihood that Frankie will have to share a table with another student?

• Impossible

• Unlikely

• As likely as not

• Likely

• Certain

At the weekly raffle you have a .12 probability of winning a big prize, an .18 probability of winning a medium sized prize, and a .3 probability of winning a small prize. What is the probability that you will not win anything?

• .33

• .4

• .6

• .67

A bag contains 24 marbles. There are 8 green marbles, 13 black marbles, and 3 orange marbles. One marble is selected at random. Select the statement that is false.

• It is unlikely that a green marble will be selected.

• It is unlikely that an orange marble will be selected.

• It is impossible that a red marble will be selected.

• It is unlikely that a black marble will be selected.