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 the x-axis represent in a scatterplot?

Back

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

Front

What does the y-axis represent in a scatterplot?

Back

The y-axis typically represents the dependent variable, which is the variable that is measured or observed.

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship is indicated by points that form a straight line or a pattern that closely resembles a straight line.

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 there is no correlation in a scatterplot?

Back

No correlation means that there is no apparent relationship between the two variables; the points are scattered randomly.

Front

How can you make predictions using a scatterplot?

Back

You can make predictions by finding the trend line (line of best fit) and using it to estimate values for the dependent variable based on the independent variable.

Front

What is the purpose of a trend line in a scatterplot?

Back

A trend line helps to summarize the relationship between the variables and can be used for making predictions.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that is significantly different from other points in the dataset, often lying far away from the trend line.