Scatterplots

Front

What is a scatterplot?

Back

A scatterplot 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 scatterplot indicate?

Back

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

Front

What does a negative linear association in a scatterplot indicate?

Back

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

Front

What does it mean if a scatterplot shows no apparent association?

Back

It means there is no clear relationship between the two variables being plotted.

Front

How can you predict values using a scatterplot?

Back

You can predict values by finding the trend in the data points and estimating the value of one variable based on the value of the other.

Front

What is the purpose of using scatterplots in data analysis?

Back

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

Front

What is the significance of outliers in a scatterplot?

Back

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

Front

How do you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified if the data points form a pattern that resembles a straight line.

Front

What is the difference between correlation and causation in the context of scatterplots?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.

Front

What does the x-axis typically represent in a scatterplot?

Back

The x-axis typically represents the independent variable, which is the variable that is manipulated or changed.