Scatter Plots

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 slope indicate in a scatter plot?

Back

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

Front

What does a negative slope indicate in a scatter plot?

Back

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

Front

What does it mean if a scatter plot shows no association?

Back

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

Front

How can you identify a positive slope in a scatter plot?

Back

A positive slope can be identified by a line that rises from left to right.

Front

How can you identify a negative slope in a scatter plot?

Back

A negative slope can be identified by a line that falls from left to right.

Front

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

Back

The slope indicates the direction and strength of the relationship between the two variables.

Front

What does a slope of 0 indicate in a scatter plot?

Back

A slope of 0 indicates that there is no change in the dependent variable as the independent variable changes; the relationship is horizontal.

Front

What is the purpose of using scatter plots?

Back

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

Front

What is correlation in the context of scatter plots?

Back

Correlation refers to the strength and direction of a linear relationship between two variables, which can be positive, negative, or none.