AP Stats Probability Vocab Flashcard

Front

What is the General Multiplication Rule in probability?

Back

P(A and B) = P(A) * P(B|A)

Front

What is the branch of mathematics that describes the patterns of chance outcomes?

Back

Probability

Front

What is the multiplication rule for independent events?

Back

P(A and B) = P(A) × P(B)

Front

What is a probability model?

Back

A mathematical description of randomness

Front

What is the purpose of tree diagrams in probability?

Back

To organize circumstances and outcomes in conditional probability

Front

Define independent events in probability.

Back

Two events are independent if the occurrence of one does not affect the occurrence of the other.

Front

What is conditional probability?

Back

The probability of an event occurring given that another event has already occurred.

Front

What is the formula for conditional probability?

Back

P(A|B) = P(A and B) / P(B) if P(B) > 0.

Front

What is the Law of Total Probability?

Back

If B1, B2, ..., Bn are a partition of the sample space, then P(A) = P(A|B1)P(B1) + P(A|B2)P(B2) + ... + P(A|Bn)P(Bn).

Front

What is a sample space in probability?

Back

The set of all possible outcomes of a probability experiment.