Scatterplots

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 association in a scatterplot indicate?

Back

A positive association indicates that as the values of one variable increase, the values of the other variable also increase.

Front

What does a negative association in a scatterplot indicate?

Back

A negative association indicates that as the values of one variable increase, the values of the other variable decrease.

Front

What does no association mean in a scatterplot?

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 describe a strong positive linear association?

Back

A strong positive linear association means that the data points closely follow a straight line that slopes upwards.

Front

How can you describe a weak positive linear association?

Back

A weak positive linear association means that the data points are scattered but still show a general upward trend.

Front

What is a non-linear association?

Back

A non-linear association occurs when the relationship between the two variables does not follow a straight line, indicating a more complex relationship.

Front

What is the purpose of a scatterplot?

Back

The purpose of a scatterplot is to visually represent the relationship between two variables, making it easier to identify patterns, trends, and correlations.

Front

What does it mean if a scatterplot shows a constant relationship?

Back

A constant relationship means that the value of one variable remains the same regardless of the value of the other variable.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that fall far away from the general trend of the data; they can significantly affect the interpretation of the relationship.