Probability Quiz

What is the probability of rolling a 3 on a fair six-sided die?

• 1/3

• 1/6

• 1/2

• 3/6

Which of the following best describes an event that is certain to happen?

• Probability is equal to 0

• Probability is greater than 1

• Probability is less than 0

• Probability is equal to 1

If you flip a fair coin once, what is the probability of getting tails?

• 0.25

• 0.50

• 0.75

• 1.00

Which situation involves mutually exclusive events?

• Drawing a red and black card at the same time

• Scoring above 70 and being absent

• Passing and failing a test

• Being both a teacher and a student

What does it mean when two events are dependent?

• They cannot happen together

• One affects the probability of the other

• They must happen in sequence

• Both have the same outcome

Which of the following is an example of independent events?

• Drawing two cards without replacement

• Rolling a die and flipping a coin

• Choosing a marble and not returning it

• Selecting team members from one group

What rule is used to find the probability of two independent events both occurring?

• Addition rule

• Multiplication rule

• Complement rule

• Subtraction rule

A bag has 3 blue, 2 red, and 1 green marble. What is the probability of randomly picking a green marble?

When do we use the addition rule in probability?

• When two events must occur together

• When two events are dependent

• When two events are mutually exclusive

• When two events are mutually exclusive

If you randomly select one card from a standard deck, what is the probability of choosing a heart?

• 1/2

• 1/4

• 1/13

• 1/8