SOL 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 (impossible) and 1 (certain).

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

If you have 6 marbles: 2 red and 4 blue, what is the probability of picking a red marble?

Back

The probability is 2/6 or 1/3.

Front

If you have 10 marbles: 3 green, 2 yellow, and 5 blue, what is the probability of picking a yellow marble?

Back

The probability is 2/10 or 1/5.

Front

What does 'likely' mean in probability?

Back

'Likely' means that an event has a good chance of happening.

Front

What does 'unlikely' mean in probability?

Back

'Unlikely' means that an event has a small chance of happening.

Front

If you have a bag with 4 yellow marbles and 8 blue marbles, what is the probability of picking a blue marble?

Back

The probability is 8/12 or 2/3.

Front

What is the probability of picking a marble that is neither red nor blue if you have 5 red, 3 blue, and 2 green marbles?

Back

The probability is 2/10 or 1/5.

Front

If there are 12 marbles in total and 3 are green, what is the probability of picking a green marble?

Back

The probability is 3/12 or 1/4.