Scatterplots and Two-Way Tables 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 grid.

Front

What does a line of best fit represent in a scatterplot?

Back

A line of best fit is a straight line that best represents the data on a scatterplot, used to make predictions about future data points.

Front

What is a two-way table?

Back

A two-way table is a data display that organizes data based on two categorical variables, allowing for comparison of the frequencies of different combinations.

Front

How do you determine the number of data points in a specific category from a two-way table?

Back

To determine the number of data points in a specific category, sum the values in the corresponding row or column of the two-way table.

Front

What does it mean if a scatterplot shows a positive association?

Back

A positive association in a scatterplot means that as one variable increases, the other variable also tends to increase.

Front

What does it mean if a scatterplot shows a negative association?

Back

A negative association in a scatterplot means that as one variable increases, the other variable tends to decrease.

Front

What is no association in a scatterplot?

Back

No association means that there is no discernible relationship between the two variables; the data points are scattered randomly.

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

How can you identify outliers in a scatterplot?

Back

Outliers are data points that fall far away from the general trend of the other points in the scatterplot.

Front

What is the purpose of using a scatterplot?

Back

The purpose of using a scatterplot is to visually assess the relationship between two quantitative variables and identify patterns or trends.