Two Way Table Probability FLASHCARD

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 analysis of the relationship between two categorical variables.

Front

How do you find the total number of responses in a two-way table?

Back

To find the total number of responses, sum all the frequencies in the table.

Front

What does the term 'probability' mean?

Back

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

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 is the probability of selecting a girl who prefers dogs if 2 out of 35 children are girls who prefer dogs?

Back

The probability is 2/35.

Front

What is the significance of the total in a two-way table?

Back

The total in a two-way table helps to understand the overall distribution and is essential for calculating probabilities.

Front

How can you determine which group prefers a certain option in a two-way table?

Back

By comparing the frequencies of each group for that option in the table.

Front

What does it mean if a probability is expressed as a fraction?

Back

A probability expressed as a fraction indicates the ratio of favorable outcomes to total outcomes.

Front

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

Back

Interpretation involves analyzing the frequencies to understand relationships and preferences between the two variables.

Front

What is a categorical variable?

Back

A categorical variable is a variable that can take on one of a limited, fixed number of possible values, assigning each individual or other unit of observation to a particular group.