Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

What is the formula for calculating the probability of an event?

Back

The probability of an event is calculated as: P(Event) = Number of favorable outcomes / Total number of possible outcomes.

Front

What is a sample space?

Back

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

Front

What is a compound event?

Back

A compound event is when two or more independent events occur together.

Front

How do you find the probability of rolling a specific number on a die?

Back

The probability of rolling a specific number on a die is 1/6, since there are 6 possible outcomes.

Front

What is the theoretical probability of pulling a red marble from a bag with 3 red, 2 blue, and 4 yellow marbles?

Back

The theoretical probability of pulling a red marble is 3/9 or 1/3.

Front

What does it mean if an event is 'equally likely'?

Back

An event is 'equally likely' if all outcomes have the same chance of occurring.

Front

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

Back

The probability of rolling an even number (2, 4, or 6) is 3/6 or 1/2.

Front

What are independent events?

Back

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

Front

What is the probability of flipping two coins and getting at least one head?

Back

The probability of getting at least one head when flipping two coins is 3/4.