AP Statistics Probability flashcard

Front

What is the probability that a student plays sports given that they do community service?

Back

Front

What is the sample space for rolling a fair six-sided die?

Back

The sample space is {1, 2, 3, 4, 5, 6}.

Front

What is the probability that a randomly selected student plays sports given that they do not do community service?

Back

Front

If P(A) = 0.6 and P(B) = 0.5, what is P(A and B) if A and B are independent events?

Back

P(A and B) = P(A) * P(B) = 0.6 * 0.5 = 0.3.

Front

If P(A) = 0.4 and P(B) = 0.3, what is P(A or B) using the general addition rule?

Back

P(A or B) = P(A) + P(B) - P(A and B) = 0.4 + 0.3 - 0 = 0.7.

Front

Define probability.

Back

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

Front

What is a sample space?

Back

A sample space is the set of all possible outcomes of a random experiment.

Front

What is an independent event in probability?

Back

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

Front

What is the formula for the probability of the union of two events?

Back

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

Front

What does it mean if P(A) = 0?

Back

If P(A) = 0, it means that event A cannot occur.