Understanding Basic Probability Concepts

What is the probability of getting heads when flipping a coin once?

• 1

• 0.75

• 0.5

• 0.25

If two coins are flipped, what is the probability of getting two heads?

• 0.75

• 0.25

• 0.5

• 1

How many possible outcomes are there when flipping a coin twice?

• 2

• 3

• 4

• 5

What does a sample space represent in probability?

• Unfavorable outcomes

• Favorable outcomes

• None of the above

• Total possible outcomes

What is the probability of getting at least one tail when flipping two coins?

• 0.25

• 1

• 0.5

• 0.75

Using the complement rule, what is the probability of not getting two tails when flipping two coins?

• 0.25

• 0.5

• 0.75

• 1

What must the sum of all probabilities in a sample space equal?

• 0.75

• 0.5

• 1

• 0

What is the probability of an event that is certain to occur?

• 0.25

• 0

• 0.5

• 1

What is the probability of an event that will never occur?

• 1

• 0.5

• 0.25

• 0

How is the probability of two independent events occurring calculated?

• Adding their probabilities

• Subtracting their probabilities

• Multiplying their probabilities

• Dividing their probabilities