Probability with Two-Way Tables

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 is a two-way table?

Back

A two-way table is a statistical table that displays the frequency distribution of two categorical variables.

Front

How do you calculate the probability of an event?

Back

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

Front

What does it mean if the probability of an event is 0?

Back

It means that the event cannot occur.

Front

What does it mean if the probability of an event is 1?

Back

It means that the event is certain to occur.

Front

What is a conditional probability?

Back

Conditional probability is the probability of an event occurring given that another event has already occurred.

Front

How do you find the conditional probability of A given B?

Back

P(A|B) = P(A and B) / P(B), where P(A|B) is the probability of A given B.

Front

What is the total probability rule?

Back

The total probability rule states that the total probability of an event can be found by considering all possible ways that event can occur.

Front

What is the formula for finding the probability of independent events?

Back

For independent events A and B, P(A and B) = P(A) * P(B).

Front

What is the difference between independent and dependent events?

Back

Independent events do not affect each other's outcomes, while dependent events do.