Scatterplot Associations

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables where each point represents an observation. It helps to visualize the relationship between the variables.

Front

What does a positive correlation indicate in a scatterplot?

Back

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

Front

What does a negative correlation indicate in a scatterplot?

Back

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

Front

What does it mean if a scatterplot shows no association?

Back

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

Front

What is a linear association in a scatterplot?

Back

A linear association means that the points in the scatterplot can be approximated by a straight line, indicating a consistent relationship between the variables.

Front

What is a non-linear association in a scatterplot?

Back

A non-linear association means that the relationship between the variables cannot be accurately represented by a straight line; it may curve or change direction.

Front

How can you identify a positive relationship in a scatterplot?

Back

A positive relationship can be identified when the points trend upwards from left to right, indicating that as one variable increases, the other also increases.

Front

How can you identify a negative relationship in a scatterplot?

Back

A negative relationship can be identified when the points trend downwards from left to right, indicating that as one variable increases, the other decreases.

Front

What is the significance of the slope in a scatterplot?

Back

The slope indicates the direction and steepness of the relationship between the two variables; a positive slope indicates a positive relationship, while a negative slope indicates a negative relationship.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two quantitative variables, helping to identify patterns, trends, and correlations.