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 is the probability of flipping heads on a fair coin?

Back

1 out of 2 (or 50%)

Front

How do you calculate the probability of an event?

Back

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

Front

What is a favorable outcome?

Back

A favorable outcome is the result of an event that we are interested in.

Front

If a bag contains 3 red balls and 2 blue balls, what is the probability of picking a red ball?

Back

3/5

Front

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

Back

A certain event is one that will definitely happen, with a probability of 1.

Front

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

Back

An impossible event is one that cannot happen, with a probability of 0.

Front

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

Back

1 out of 6 (or approximately 16.67%)

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

If there are 10 total candies and 2 are red, what is the probability of selecting a red candy?

Back

2/10 or 1/5