Probability With Fractions

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a fraction or percentage.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator and 'b' is the denominator.

Front

How do you calculate the probability of an event?

Back

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

Front

What is the probability of pulling out an apple if there are 5 apples and 10 other fruits in a bag?

Back

5/15 or 1/3.

Front

If there are 4 oranges in a bag of 15 fruits, what is the probability of pulling out an orange?

Back

4/15.

Front

What is the probability of spinning red if there are 5 red sections out of 12 total sections?

Back

5/12.

Front

What is the probability of rolling a die and landing on a 3?

Back

1/6.

Front

If you can roll a 3 or a 6 on a die, what is the probability of rolling either?

Back

2/6 or 1/3.

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.

Front

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

Back

It means the event is certain and will definitely occur.