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 is the sample space in probability?

Back

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

Front

What does it mean if an event has a probability of 0?

Back

It means that the event is impossible and will not occur.

Front

What does it mean if an event has a probability of 1?

Back

It means that the event is certain to 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 a favorable outcome?

Back

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

Front

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

Back

Probability = 1/6, since there is one favorable outcome (rolling a 3) out of six possible outcomes.

Front

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

Back

Probability = 13/52 = 1/4, since there are 13 hearts in a deck of 52 cards.

Front

What is a complementary event?

Back

The complementary event is the event that represents all outcomes not in the event. If P(A) is the probability of event A, then P(not A) = 1 - P(A).

Front

What is a dependent event in probability?

Back

Dependent events are events where the outcome of one event affects the outcome of another.