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 correlation in a scatterplot indicate?

Back

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

Front

What does a negative correlation in a scatterplot indicate?

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 correlation?

Back

No correlation means there is no apparent relationship between the two variables; the data points do not follow a pattern.

Front

How can you identify a linear relationship in a scatterplot?

Back

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

Front

What is the purpose of using a scatterplot?

Back

The purpose of using a scatterplot is to visually represent the relationship between two variables and to identify trends or patterns in the data.

Front

What is the independent variable in a scatterplot?

Back

The independent variable is the variable that is manipulated or changed in an experiment, typically plotted on the x-axis.

Front

What is the dependent variable in a scatterplot?

Back

The dependent variable is the variable that is measured or observed in an experiment, typically plotted on the y-axis.

Front

How do you interpret the slope of a line in a scatterplot?

Back

The slope indicates the rate of change between the two variables; a steeper slope means a greater change.

Front

What does it mean if a scatterplot has outliers?

Back

Outliers are data points that are significantly different from the others; they can affect the overall interpretation of the data.