Probability Quiz

What is the definition of probability?

• The certainty of an event occurring

• The chance of an event occurring

• The impossibility of an event occurring

• The frequency of an event occurring

In what forms can probabilities be written?

• Only as fractions

• Only as decimals

• Only as percentages

• As fractions, decimals, or percentages

What is the probability value for an event that is certain to occur?

• 0

• 0.5

• 1

• 0.1

What is the probability value for an event that is impossible to occur?

• 0

• 0.5

• 1

• 0.1

What does a probability value of 0.5 indicate?

• The event is highly unlikely

• The event is certain

• The event has an even chance of occurring

• The event is impossible

Which of the following probability values indicates that an event is highly likely to occur?

• 0.1

• 0.3

• 0.9

• 0.5

What is the probability that a high tide will be followed by a low tide?

• 0

• 1

• 1/2

• 1/4

What is the probability that everyone in your class will agree on every matter this year?

• 1

• 0

• 1/2

• 1/4

What is the probability that a tossed coin lands heads?

• 0

• 1

• 1/2

• 1/4

Is there an equal chance of landing on each color in the spinner shown?

• Yes, because there is one of every color and all triangles are equal in size

• No, because some colors are larger than others

• Yes, because the spinner is biased

• No, because the spinner is not fair