Probability Concepts and Experiments

Patty Simpson introduces key vocabulary related to probability, including experiments, outcomes, sample space, and events. She explains that an experiment is a process with results determined by chance, and outcomes are the possible results of an experiment. The sample space is the set of all possible outcomes, and equally likely outcomes are those with the same probability of occurring. An event is a subset of the sample space, representing the outcomes of interest.

What is an experiment in the context of probability?

• A process with a predetermined result

• A process with no result

• A process with a fixed outcome

• A process with a result determined by chance

Which of the following is NOT a probability experiment?

• Rolling a dice

• Drawing a card

• Driving a car

• Reading a book

Which of the following is an example of an outcome?

• Drawing a green Skittle

• Rolling a dice

• Driving a car

• Drawing a card

What is the outcome when you draw an ace from a deck of cards?

• Drawing a heart

• Drawing a spade

• Drawing an ace

• Drawing a card

What does the sample space represent in a probability experiment?

• The set of all possible outcomes

• The set of all impossible outcomes

• The set of all favorable outcomes

• The set of all unfavorable outcomes

In a probability experiment, what is meant by equally likely outcomes?

• Outcomes that never occur

• Outcomes that have the same chance of occurring

• Outcomes that are certain

• Outcomes that are impossible

How is a symmetric sample space defined?

• All outcomes are certain

• All outcomes are impossible

• All outcomes are different

• All outcomes are equally likely

What is an event in the context of probability?

• The entire sample space

• A subset of the sample space

• An impossible outcome

• A single outcome

If you are looking for the probability of drawing a red or orange Skittle, what is the event?

• Drawing any Skittle

• Drawing a red or orange Skittle

• Drawing an orange Skittle

• Drawing a red Skittle

If you are finding the probability of getting a Skittle, what is the event?

• Getting a chocolate

• Getting a red Skittle

• Getting a Skittle

• Getting a candy