Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a line of best fit represent in a scatter plot?

Back

A line of best fit represents the trend of the data points in a scatter plot, indicating the general direction of the relationship between the variables.

Front

What does a positive slope in a scatter plot indicate?

Back

A positive slope indicates that as one variable increases, the other variable also increases.

Front

What does a negative slope in a scatter plot indicate?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Front

What is an outlier in a scatter plot?

Back

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

Front

How can you identify a linear relationship in a scatter plot?

Back

A linear relationship can be identified if the data points roughly form a straight line.

Front

What does the slope of a line in a scatter plot represent?

Back

The slope represents the rate of change between the two variables; it shows how much one variable changes for a unit change in the other variable.

Front

What is the purpose of using a scatter plot?

Back

The purpose of using a scatter plot is to visually display the relationship between two variables and to identify patterns, trends, or correlations.

Front

What does it mean if a scatter plot shows no correlation?

Back

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

Front

How do you determine the coordinates of an outlier in a scatter plot?

Back

The coordinates of an outlier can be determined by identifying the data point that lies farthest from the general trend of the other points.