4.13 Probability

Front

What is probability?

Back

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

Front

What does it mean if an event is 'impossible'?

Back

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

Front

What does it mean if an event is 'certain'?

Back

A certain event has a probability of 1, meaning it will definitely happen.

Front

What does 'equally likely' mean in probability?

Back

Equally likely means that all outcomes have the same chance of occurring.

Front

What is a simple way to express probability?

Back

Probability can be expressed as a fraction, decimal, or percentage.

Front

If there are 9 candies and 2 are red, what is the probability of choosing a red candy?

Back

The probability is 2/9.

Front

If there are 13 candies and 6 are blue, what is the probability of choosing a blue candy?

Back

The probability is 6/13.

Front

What does 'more likely' mean in probability?

Back

More likely means that the probability of an event is greater than 0.5.

Front

What does 'less likely' mean in probability?

Back

Less likely means that the probability of an event is less than 0.5.

Front

How do you calculate the probability of an event?

Back

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