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 linear association in a scatter plot indicate?

Back

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

Front

What does a negative linear association in a scatter plot indicate?

Back

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

Front

What does no association mean in a scatter plot?

Back

No association means that there is no predictable relationship between the two variables; the data points do not show any pattern.

Front

What is a nonlinear association?

Back

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

Front

What is correlation in the context of scatter plots?

Back

Correlation refers to the strength and direction of a relationship between two variables, which can be positive, negative, or nonexistent.

Front

What does it mean if a scatter plot has a negative correlation?

Back

It means that as the value of one variable increases, the value of the other variable tends to decrease.

Front

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

Back

A positive correlation is identified when the data points trend upwards from left to right.

Front

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

Back

A negative correlation is identified when the data points trend downwards from left to right.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that differ significantly from other observations and can affect the overall correlation and interpretation of the data.