Algebra 2 9.3 Two Way Tables

Front

What is a two-way table?

Back

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

Front

How do you calculate the probability of an event?

Back

Probability is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What does it mean if two events are independent?

Back

Two events are independent if the occurrence of one event does not affect the probability of the other event occurring.

Front

What is the formula for finding the percentage of a part compared to a whole?

Back

Percentage = (Part/Whole) x 100.

Front

How do you interpret the results of a two-way table?

Back

Results from a two-way table can be interpreted by analyzing the frequencies and calculating probabilities or percentages for different categories.

Front

What is a marginal frequency in a two-way table?

Back

Marginal frequency refers to the totals found in the margins of a two-way table, representing the total counts for each category.

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 probability of a specific outcome in a two-way table?

Back

To find the probability of a specific outcome, divide the frequency of that outcome by the total number of observations.

Front

What is the difference between relative frequency and absolute frequency?

Back

Absolute frequency is the count of occurrences of a category, while relative frequency is the proportion of the total that this count represents.

Front

How can you use a two-way table to find the percentage of a specific group?

Back

To find the percentage of a specific group, divide the count of that group by the total count and multiply by 100.