SOL 4.13 Probability

Front

What is probability?

Back

Probability is a measure of how likely or unlikely something is.

Front

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

Back

It means the event will definitely happen.

Front

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

Back

It means the event cannot happen at all.

Front

If a spinner has 4 sections, and 2 are red, what is the probability of landing on red?

Back

The probability is 2/4 or 1/2.

Front

What is the probability of landing on an odd number if there are 4 odd numbers and 4 even numbers on a spinner?

Back

The probability is 4/8 or 1/2.

Front

If there are 3 blue marbles, 2 green marbles, and 5 red marbles, what is the probability of picking a green marble?

Back

The probability is 2/10 or 1/5.

Front

What does 'least likely' mean in probability?

Back

It refers to the event that has the smallest chance of occurring.

Front

If a jar has 10 marbles: 4 red, 3 blue, and 3 green, which color is most likely to be picked?

Back

Red is most likely to be picked.

Front

What is an example of a 'likely' event?

Back

Choosing a red marble from a bag with more red marbles than any other color.

Front

What is an example of an 'unlikely' event?

Back

Choosing a green marble from a bag with mostly red marbles.