Probability Quick Check

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 has a probability of 0?

Back

It means the event is impossible and will not happen.

Front

What does it mean if an event has a probability of 1?

Back

It means the event is certain and will definitely happen.

Front

How do you calculate the probability of an event?

Back

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

Front

If there are 10 cards and 2 are red, what is the probability of picking a red card?

Back

Front

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

Back

Front

If a bag contains 3 blue marbles and 2 green marbles, what is the probability of picking a blue marble?

Back

Front

What does 'equally likely' mean in probability?

Back

It means that all outcomes have the same chance of occurring.

Front

If an event is 'unlikely', what does that mean?

Back

It means that the event has a low probability of occurring.

Front

What is a 'certain' event?

Back

A certain event is one that is guaranteed to happen.