Simple Probability

Front

What is the probability of rolling a sum of 11 with two dice?

Back

1/18

Front

An event has a 0% chance of happening. This event is ___?

Back

Impossible

Front

What is the probability of choosing either a solid black or solid white marble from a bag?

Back

3/5

Front

If you flip two coins, what is the probability of getting one head and one tail?

Back

1/2

Front

A bag has 10 marbles: 4 red, 2 green, 2 blue, 2 yellow. What is the probability of pulling out a blue marble?

Back

2/10 or 1/5

Front

What is the definition of probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What does a probability of 1 mean?

Back

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

Front

What does a probability of 0 mean?

Back

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

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 rolling a sum of 7 with two dice?

Back

6/36 or 1/6.