Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a strong association in a scatterplot indicate?

Back

A strong association indicates that as one variable increases or decreases, the other variable tends to increase or decrease in a predictable manner.

Front

What does a weak association in a scatterplot indicate?

Back

A weak association indicates that there is little to no predictable relationship between the two variables.

Front

What is a linear relationship in a scatterplot?

Back

A linear relationship is when the points in the scatterplot form a straight line, indicating a constant rate of change between the two variables.

Front

What is a non-linear relationship in a scatterplot?

Back

A non-linear relationship is when the points do not form a straight line, indicating that the rate of change between the variables is not constant.

Front

How can you identify a strong positive correlation in a scatterplot?

Back

A strong positive correlation is identified when the points cluster closely around an upward-sloping line.

Front

How can you identify a strong negative correlation in a scatterplot?

Back

A strong negative correlation is identified when the points cluster closely around a downward-sloping line.

Front

What does it mean if a scatterplot shows no correlation?

Back

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

Front

What is the purpose of using scatterplots in data analysis?

Back

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

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are points that fall far away from the general pattern of the data, which can indicate anomalies or errors in data collection.