Topic 4 - Bivariate Data

Front

What is bivariate data?

Back

Bivariate data involves two variables and is used to determine the relationship between them.

Front

What does a positive correlation indicate in a scatter plot?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no apparent relationship between the two variables.

Front

How do you calculate relative frequency?

Back

Relative frequency is calculated by dividing the frequency of a specific category by the total frequency.

Front

What is the purpose of a scatter plot?

Back

A scatter plot visually represents the relationship between two quantitative variables.

Front

What is an example of a negative correlation?

Back

An example of a negative correlation is the relationship between outside temperature and the number of layers of clothing worn.

Front

What is an example of a positive correlation?

Back

An example of a positive correlation is the relationship between study time and test scores.

Front

What is the range of values for correlation coefficients?

Back

Correlation coefficients range from -1 to 1, where -1 indicates a perfect negative correlation, 1 indicates a perfect positive correlation, and 0 indicates no correlation.

Front

What is the significance of the slope in a linear regression line?

Back

The slope indicates the rate of change of the dependent variable for each unit change in the independent variable.