4/22 - Probability of a single event

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 a probability of 0 mean?

Back

A probability of 0 means that the event is impossible and will not occur.

Front

What does a probability of 1 mean?

Back

A probability of 1 means that the event is certain and will definitely occur.

Front

What is the probability of flipping a coin and getting heads?

Back

1/2 or 50%.

Front

What is the probability of rolling a die and getting a 3?

Back

1/6.

Front

If an event has a probability of 0.5, what does that mean?

Back

It means the event is equally likely to occur or not occur.

Front

What is the formula for calculating probability?

Back

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

Front

What is the probability of drawing a red card from a standard deck of cards?

Back

26/52 or 1/2.

Front

What is the probability of not rolling a 4 on a six-sided die?

Back

5/6.

Front

If you have a bag with 3 red, 2 blue, and 5 green marbles, what is the probability of picking a blue marble?

Back

2/10 or 1/5.