Probability of Compound Events

What is the probability of rolling a 6 on a number cube?

• 1/2

• 1/3

• 1/6

• 1/4

If a spinner has 4 equal sections (2 red, 1 green, 1 blue), what is the probability of spinning red?

• 1/4

• 1/2

• 3/4

• 1/3

What is the probability of spinning blue on a spinner?

• It is always 0%

• It depends on the number of blue sections compared to total sections.

• It is always 100%

• It is impossible to determine without more information.

What is the probability of rolling a number greater than 4 on a number cube?

• 1/2

• 1/3

• 1/4

• 2/3

What is the probability of rolling a number less than 5 on a number cube?

• 1/2

• 2/3

• 3/4

• 1/3

What is a compound event in probability?

• An event that combines two or more simple events.

• An event that occurs only once.

• An event that has no possible outcomes.

• An event that is impossible to occur.

What is the theoretical probability of pulling a red marble from a bag with 3 red, 2 blue, and 4 yellow marbles?

• 1/2

• 1/3

• 1/4

• 2/5

How do you express probability as a fraction?

• Number of favorable outcomes / Total number of possible outcomes.

• Total number of possible outcomes / Number of favorable outcomes.

• Number of outcomes / Total number of events.

• Favorable outcomes + Total outcomes.

What is the probability of rolling a 5 or 6 on a number cube?

• 1/4

• 1/3

• 1/2

• 1/6

How do you calculate the probability of two independent events occurring together?

• Add the probabilities of each event.

• Multiply the probabilities of each event.

• Subtract the probabilities of each event.

• Divide the probabilities of each event.