Probability Review

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 are dependent events?

Back

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

Front

What are independent events?

Back

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

Front

Define sample space.

Back

Sample space is the set of all possible outcomes of a probability experiment.

Front

What is the probability of rolling a die and getting an even number?

Back

The probability is 1/2, as there are 3 even numbers (2, 4, 6) out of 6 possible outcomes.

Front

How do you calculate the probability of two independent events occurring?

Back

Multiply the probabilities of each event: P(A and B) = P(A) * P(B).

Front

What is the formula for calculating the probability of dependent events?

Back

P(A and B) = P(A) * P(B|A), where P(B|A) is the probability of B given A has occurred.

Front

What is a favorable outcome?

Back

A favorable outcome is an outcome that is considered successful for the event being measured.

Front

If Bag A has 9 red marbles and 3 green marbles, what is the probability of drawing a green marble?

Back

The probability is 3/12 or 1/4.

Front

What is the total number of outcomes when flipping a coin twice?

Back

There are 4 outcomes: HH, HT, TH, TT.