Math 2 Unit 8 Practice Test - Probability

Front

What is the definition of 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 the formula for conditional probability?

Back

The formula for conditional probability is P(A|B) = P(A ∩ B) / P(B), where P(A|B) is the probability of event A given event B.

Front

How do you calculate the probability of an event?

Back

The probability of an event is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What does P(girl | can bike) represent?

Back

P(girl | can bike) represents the probability of selecting a girl given that the person can bike.

Front

What is the probability of choosing a boy given they can't bike?

Back

The probability of choosing a boy given they can't bike is 29%.

Front

What is an experimental probability?

Back

Experimental probability is the probability determined by conducting an experiment and observing the outcomes.

Front

How do you find P(5 | number > 3) using experimental results?

Back

To find P(5 | number > 3), divide the number of times 5 was rolled when the number was greater than 3 by the total number of times a number greater than 3 was rolled.

Front

What is the union of two sets A and B?

Back

The union of two sets A and B, denoted A ∪ B, is the set containing all elements from both sets without duplicates.

Front

Given A = {1, 7, 8, 14, 19} and B = {1, 4, 14, 24}, what is A ∪ B?

Back

A ∪ B = {1, 4, 7, 8, 14, 19, 24}.

Front

What is the probability of rolling a 2 or a 4 on a 6-sided die?

Back

The probability of rolling a 2 or a 4 is calculated by adding the probabilities of each event.