Probability Fractions

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

How is probability calculated?

Back

Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Front

What is a favorable outcome in probability?

Back

A favorable outcome is an outcome that satisfies the condition of the event we are interested in.

Front

What does it mean to have a probability of 0?

Back

A probability of 0 means that the event cannot occur.

Front

What does it mean to have a probability of 1?

Back

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

Front

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

Back

The probability of rolling a specific number on a fair six-sided die is 1/6.

Front

How do you calculate the probability of multiple events occurring?

Back

For independent events, multiply the probabilities of each event. For mutually exclusive events, add the probabilities.

Front

What is the probability of pulling out a specific item from a bag?

Back

The probability is calculated by dividing the number of that specific item by the total number of items in the bag.

Front

What is the formula for calculating the probability of 'A or B'?

Back

P(A or B) = P(A) + P(B) - P(A and B).

Front

What is the probability of not getting a specific outcome?

Back

The probability of not getting a specific outcome is 1 minus the probability of getting that outcome.