Scatterplot Relationships

Front

What is a scatterplot?

Back

A scatterplot 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 scatterplot?

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 scatterplot?

Back

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

Front

What does no correlation mean in a scatterplot?

Back

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

Front

What is a linear association in a scatterplot?

Back

A linear association means that the data points can be approximated by a straight line.

Front

What is a non-linear association in a scatterplot?

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 strong correlation in a scatterplot?

Back

A strong correlation is indicated by data points that are closely clustered around a straight line.

Front

How can you identify a weak correlation in a scatterplot?

Back

A weak correlation is indicated by data points that are more spread out and do not closely follow a straight line.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure that indicates the strength and direction of a linear relationship between two variables.

Front

What does a correlation coefficient of 0 indicate?

Back

A correlation coefficient of 0 indicates no correlation between the two variables.