Scatter Plots and Associations

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

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 tends to increase.

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What does 'no correlation' mean in the context of scatter plots?

Back

No correlation means there is no discernible relationship between the two variables; changes in one do not affect the other.

Front

What is a linear association in a scatter plot?

Back

A linear association means that the data points can be approximated by a straight line, indicating a consistent relationship between the variables.

Front

What is a non-linear association in a scatter plot?

Back

A non-linear association means that the relationship between the variables cannot be accurately represented by a straight line.

Front

How can you identify a weak association in a scatter plot?

Back

A weak association is indicated by data points that are spread out and do not closely follow a clear trend or line.

Front

How can you identify a strong association in a scatter plot?

Back

A strong association is indicated by data points that closely follow a clear trend or line, whether positive or negative.

Front

What is the significance of the slope in a scatter plot?

Back

The slope indicates the direction and steepness of the relationship between the two variables; a positive slope indicates a positive association, while a negative slope indicates a negative association.

Front

What does it mean if a scatter plot shows a linear and negative association?

Back

It means that as one variable increases, the other variable decreases in a consistent manner that can be represented by a straight line.