Simple Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

What is the sample space in probability?

Back

The sample space is a list of all possible outcomes of an event.

Front

If the probability of an event is 0, what does that mean?

Back

It means the event is impossible and will not occur.

Front

If the probability of an event is 1, what does that mean?

Back

It means the event is certain and will definitely occur.

Front

What does it mean if an event is 'likely'?

Back

It means the event has a probability closer to 1 than to 0.

Front

What does it mean if an event is 'unlikely'?

Back

It means the event has a probability closer to 0 than to 1.

Front

What is an example of a certain event?

Back

An example of a certain event is the sun rising tomorrow.

Front

What is an example of an impossible event?

Back

An example of an impossible event is rolling a 7 on a standard 6-sided die.

Front

What is the probability of rolling a 3 on a standard 6-sided die?

Back

The probability is 1/6.

Front

What is the probability of not rolling a 3 on a standard 6-sided die?

Back

The probability is 5/6.