AP Stats Unit 4 pt 1 Probability Review

Front

What is the probability of two mutually exclusive events occurring?

Back

0

Front

What is the false positive rate in a blood test?

Back

The false positive rate is the probability that the test returns a positive result when the subject does not have the disease.

Front

If 2% of a population has a disease, what is the probability that a randomly selected individual who tests positive actually has the disease, given a false positive rate of 0.01 and a false negative rate of 0.05?

Back

0.6597

Front

What is the probability that a student will not earn an A or a B on the midterm if the probabilities of scoring 100%, 90%-99%, and 80%-89% are 2%, 3%, and 10% respectively?

Back

.85

Front

What is the formula for conditional probability?

Back

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

Front

If event A occurs with probability 0.5 and event B occurs with probability 0.6, and the probability that both A and B occur is 0.1, what is P(A|B)?

Back

1/6

Front

What does P(Foreign language | Sport) represent?

Back

The probability of a student taking a foreign language given that they are involved in sports.

Front

What is the complement of an event?

Back

The complement of an event A is the probability that A does not occur, denoted as P(A').

Front

Define mutually exclusive events.

Back

Two events are mutually exclusive if they cannot occur at the same time.

Front

What is the total probability rule?

Back

The total probability rule states that the total probability of an event can be found by considering all possible ways that event can occur.