Scatterplots and LOBF Review

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 LOBF stand for?

Back

LOBF stands for Line of Best Fit, which is a straight line that best represents the data on a scatterplot.

Front

How do you determine the correlation in a scatterplot?

Back

You determine the correlation by observing the direction and strength of the relationship between the variables: positive, negative, or no correlation.

Front

What is a positive correlation?

Back

A positive correlation means that as one variable increases, the other variable also increases.

Front

What is a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable decreases.

Front

What is an outlier in a scatterplot?

Back

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

Front

How can you identify an outlier?

Back

An outlier can be identified by visually inspecting the scatterplot for points that do not follow the general pattern of the data.

Front

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

Back

No correlation means that there is no discernible relationship between the two variables; changes in one do not affect the other.

Front

What is the purpose of the Line of Best Fit?

Back

The Line of Best Fit is used to summarize the relationship between variables and to make predictions based on the data.

Front

How do you draw a Line of Best Fit?

Back

To draw a Line of Best Fit, you should place a straight line that best represents the trend of the data points, minimizing the distance from all points to the line.