Probability Review

Front

What is probability?

Back

Probability is the 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 a list of all possible outcomes of a probability experiment.

Front

What is the Fundamental Counting Principle?

Back

The Fundamental Counting Principle states that if one event can occur in 'm' ways and a second can occur independently in 'n' ways, then the two events can occur in m × n ways.

Front

How do you calculate the probability of an event?

Back

Probability of an event = (Number of favorable outcomes) / (Total number of outcomes).

Front

What is a tree diagram?

Back

A tree diagram is a visual representation that shows all possible outcomes of an event, branching out from a starting point.

Front

If a pencil can be yellow or orange, how many choices are there?

Back

There are 2 choices for the pencil.

Front

If an eraser can be sun, frog, or star, how many choices are there?

Back

There are 3 choices for the eraser.

Front

How many total combinations can you make with 2 pencils and 3 erasers?

Back

Total combinations = 2 (pencils) × 3 (erasers) = 6 combinations.

Front

What is the probability of rolling a 3 on a standard die?

Back

Probability = 1/6, since there is one favorable outcome (rolling a 3) out of 6 possible outcomes.

Front

What does it mean if an event is impossible?

Back

An impossible event has a probability of 0, meaning it cannot occur.