Understanding Probability Concepts

What is the range of possible values for the probability of a chance event?

• 0 to 10

• 0 to 1

• 1 to 100

• -1 to 1

If the probability of an event is 0, what does this mean?

• The event is certain to happen

• The event is unlikely to happen

• The event is impossible

• The event is equally likely to happen or not

Which probability value indicates an event is very likely to occur?

• 0

• 0.5

• 1

• 0.1

• Unlikely

• Likely

• Impossible

• Neither unlikely nor likely

What does a probability near 0 mean?

• The event is certain

• The event is unlikely

• The event is likely

• The event is impossible

What is the probability of getting a head when flipping a fair coin?

• 0

• 1

If you roll a standard six-sided die, what is the probability of rolling a 3?

• 1

Which of the following best defines probability?

• The number of possible outcomes

• The likelihood of an event occurring, expressed as a number between 0 and 1

• The number of times an event occurs

• The total number of events

If an event has a probability of 1, what can you say about the event?

• It is impossible

• It is certain to happen

• It is unlikely

• It is equally likely to happen or not

A bag contains 3 red marbles and 2 blue marbles. What is the probability of randomly picking a blue marble?