December 8, 2023 Basic Probability

Front

What is 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 0 mean?

Back

A probability of 0 means that the event will never 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 drawing a lemon from a bag of 30 candies with 3 lemons?

Back

1/10.

Front

What is the probability of not drawing a specific event A?

Back

P(not A) = 1 - P(A).

Front

If a die is rolled, what is the probability of rolling a number greater than 2?

Back

2 out of 3.

Front

What does a probability near 1 indicate?

Back

It indicates that the event is very likely to happen.

Front

In a jar with 12 marbles (2 pink, 6 red, 4 blue), what is the probability of picking a red or blue marble?

Back

5/6.

Front

What is a sample space in probability?

Back

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