Probability

What is probability?

• A measure of how likely an event is to occur, expressed as a number between 0 and 1.

• A method to predict future events based on past occurrences.

• A statistical tool used to analyze data sets.

• A way to determine the average outcome of a series of events.

If you roll a die, what is the probability of rolling an even number?

• 1/3

• 1/4

• 1/2

• 2/3

If an event has a probability of 0, what does that mean?

• It means the event is impossible and will not occur.

• It means the event is highly likely to occur.

• It means the event will occur with certainty.

• It means the event has an equal chance of occurring or not occurring.

If a coin is tossed, what is the probability of getting heads?

• 1/4

• 1/2

• 3/4

• 1/3

What is the probability of rolling a number greater than 4 on a 6-faced die?

• 1/2 (rolling a 4, 5, or 6)

• 1/3 (rolling a 5 or 6)

• 1/6 (rolling a 6)

• 2/6 (rolling a 5 or 6)

What is the total number of outcomes when spinning a spinner with 6 equal sections?

• 4

• 5

• 6

• 7

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11

• 5/6

• 1/3

• 5

What is the probability of spinning a 2 on the spinner?

• 1/2

• 1/3

• 1/8

• 1/4

What is the probability the spinner stops on yellow?

• .05

• 50%

• 25%

• 3/8

What is the probability of spinning an even number?

• 16 2/3%

• 33 1/3%

• 50%

• 75%