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 the x-axis typically represent in a scatter plot?

Back

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

Front

What does the y-axis typically represent in a scatter plot?

Back

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

Front

What is a trend line in a scatter plot?

Back

A trend line is a straight line that best represents the data points in a scatter plot, indicating the general direction of the data.

Front

How can you determine the type of association in a scatter plot?

Back

You can determine the type of association by observing the direction of the trend line: positive (upward slope), negative (downward slope), or none (no clear trend).

Front

What does a positive association in a scatter plot indicate?

Back

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

Front

What does a negative association in a scatter plot indicate?

Back

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

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 any patterns or correlations.

Front

How can you use a scatter plot to make predictions?

Back

You can use a scatter plot to make predictions by extending the trend line to estimate values for the dependent variable based on new values of the independent variable.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far away from the trend line and can indicate anomalies or errors in data collection.