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 correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

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

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no discernible 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 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 represented by a straight line.

Front

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

Back

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

Front

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

Back

A negative association 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.

Front

What does the slope of a line in a scatter plot represent?

Back

The slope represents the rate of change between the two variables; a steeper slope indicates a stronger relationship.