Unit 4 Probability Practice (4.1-4.2)

Front

What is the probability of an event occurring, P(A)?

Back

The probability of an event occurring, P(A), can be expressed as a fraction, decimal, or percent.

Front

Which event has a probability of ¼?

Back

P(NOT green)

Front

If Event A has a probability of 0.3, what is the probability of the complement of Event A?

Back

0.7

Front

What is the range of possible values for probability?

Back

Probability can be between 0 and 1.

Front

If 33% of students have a pet, what is the probability of the complement of this event?

Back

67%.

Front

Define 'complement of an event'.

Back

The complement of an event A, denoted as NOT A, is the event that A does not occur.

Front

What is the sum of the probabilities of an event and its complement?

Back

The sum of the probabilities of an event and its complement is always 1.

Front

What is the probability of an impossible event?

Back

The probability of an impossible event is 0.

Front

What is the probability of a certain event?

Back

The probability of a certain event is 1.

Front

If the probability of an event is 0.5, what is the probability of its complement?

Back

0.5.