Probability Test (7th Grade)

According to the weather forecast, there is a 20% chance of rain today. How likely it is that it will rain?

• Impossible

• Unlikely

• Equally Likely

• Likely

• Certainly

During the summer, your friend has swimming lessons every Tuesday and Thursday morning at the neighborhood pool. How likely is it that you'll see your friend at the pool on Tuesday morning during the summer?

• Impossible

• Unlikely

• Equally likely

• Likely

• Certainly

All the students in the school band showed up for practice today. How likely is it that all the clarinet players are present for band practice?

• Impossible

• Unlikely

• Equally likely

• Likely

• Certainly

A jar has contain 2 yellow jelly beans, 3 purple jelly beans, 5 brown jelly beans and 4 blue jelly beans. You choose at random one jelly bean. Which color jelly bean are you more likely to pick?

• Yellow

• Blue

• Purple

• Brown

Identify the outcome shown and the sample space on the spinner.

• outcome; 5

  sample space: 2, 3,4, 5, 6, 7, 8

• outcome; 5

  sample space: 1, 2, 3,4, 5, 6, 7, 8, 9, 10

• outcome; 1

  sample space: 2, 3,4, 5, 6, 7, 8

• outcome; 5

  sample space: 1, 2, 3,4, 5, 6, 7, 8

What is the probability of the spinner landing on an odd number?

• 1/2

• 4/4

• 1/4

• 1/3

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

• 1/2

• 4/4

• 1/4

• 1/3

If you spin the spinner 100 times, how many times would you expect to land on an odd number?

• 0

• 25

• 50

• 75

A gum ball machine has 12 white gum balls, 1 purple gum ball, 3 green gum balls, and 6 pink gum balls. You put a coin into the machine and get one gum ball. What is the THEORETICAL PROBABILITY of receiving a green gum ball as a percent (hint: part/whole X 100)

• 16%

• 14%

• 27%

• 37%

Leon tossed a paper cup 60 times and recorded how the cup landed each time. He organized his results in the following table.

Find the experimental probability that the cup will land on its side. (simplify)

• 2/5

• 3/5

• 2/3

• 1/3