Scatterplots Flashcard Review

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Front

What does a positive association in a scatterplot indicate?

Back

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

Front

What does a negative association in a scatterplot indicate?

Back

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

Front

What is a linear association?

Back

A linear association means that the relationship between the two variables can be represented by a straight line.

Front

What is a non-linear association?

Back

A non-linear association means that the relationship between the two variables cannot be represented by a straight line, often showing curves or other patterns.

Front

How do you describe the strength of a trend in a scatterplot?

Back

The strength of a trend can be described as strong, moderate, or weak based on how closely the data points cluster around a line.

Front

What is a strong positive trend?

Back

A strong positive trend occurs when the data points closely follow an upward slope, indicating a strong positive association.

Front

What is a strong negative trend?

Back

A strong negative trend occurs when the data points closely follow a downward slope, indicating a strong negative association.

Front

What is a weak trend?

Back

A weak trend occurs when the data points are more spread out and do not closely follow a clear direction.

Front

What does it mean if there is no association in a scatterplot?

Back

No association means that there is no discernible pattern or relationship between the two variables.