Scatter Plots & Two-Way Tables

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 grid.

Front

What does a positive linear association in a scatter plot indicate?

Back

A positive linear 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 a nonlinear association?

Back

A nonlinear association occurs when the relationship between two variables cannot be accurately represented by a straight line.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, used to make predictions.

Front

How can you use a trend line in a scatter plot?

Back

A trend line can be used to predict values of one variable based on the values of another variable.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots are used to visually assess the relationship between two variables and identify patterns or trends.

Front

What does it mean if there is no association in a scatter plot?

Back

No association means that there is no discernible relationship between the two variables being plotted.

Front

How do you interpret the slope of a line of best fit?

Back

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

Front

What is a two-way table?

Back

A two-way table is a data display that summarizes the relationship between two categorical variables.