Basic 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 does a probability of 0 mean?

Back

A probability of 0 means that the event cannot happen.

Front

What does a probability of 1 mean?

Back

A probability of 1 means that the event is certain to happen.

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 spinning a green section on a spinner with 4 equal sections: red, green, blue, yellow?

Back

1/4

Front

If there are 5 green marbles and 14 total marbles, what is the probability of picking a green marble?

Back

5/19

Front

What is the probability of spinning red on a spinner with 12 equal sections, where 5 are red?

Back

5/12

Front

If you flip a coin three times, what is the probability that all flips will land on tails?

Back

1/8

Front

What is the probability of choosing either a black or white marble from a bag containing 3 black, 2 white, and 5 red marbles?

Back

3/5

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.