Probability Flashcard

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What does a probability of 0 mean?

Back

A probability of 0 means that the event is impossible and will not occur.

Front

What does a probability of 1 mean?

Back

A probability of 1 means that the event is certain to occur.

Front

What is the range of probability values?

Back

Probability values range from 0 to 1.

Front

How do you calculate the probability of an event?

Back

Probability of an event = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

What is a complementary event?

Back

The complementary event is the event that represents all outcomes not included in the event. The sum of the probabilities of an event and its complement equals 1.

Front

What is an independent event in probability?

Back

Independent events are events where the occurrence of one event does not affect the occurrence of another.

Front

What is a dependent event in probability?

Back

Dependent events are events where the occurrence of one event affects the occurrence of another.

Front

What is the probability of rolling a 3 on a fair six-sided die?

Back

The probability is 1/6.

Front

What is the probability of flipping a coin and getting heads?

Back

The probability is 1/2.