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 in a scatter plot indicate?

Back

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

Front

What does a negative correlation in a scatter plot indicate?

Back

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

Front

What is no correlation in a scatter plot?

Back

No correlation means there is no apparent 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 the data points can be closely approximated by a straight line.

Front

What is a nonlinear association in a scatter plot?

Back

A nonlinear association means the relationship between the variables cannot be accurately represented by a straight line.

Front

What type of variables are typically represented in a scatter plot?

Back

Scatter plots typically represent two quantitative variables.

Front

What does it mean if a scatter plot shows a cluster of points?

Back

A cluster of points indicates that there is a strong relationship between the two variables in that area.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two variables and identify trends or patterns.

Front

How can you determine the strength of a correlation from a scatter plot?

Back

The strength of a correlation can be determined by how closely the data points cluster around a line; tighter clusters indicate stronger correlations.