Scatterplots and Two Way Tables CHECK

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 positive linear association in a scatterplot indicate?

Back

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

Front

What does a negative linear association in a scatterplot indicate?

Back

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

Front

What does 'no association' mean in the context of scatterplots?

Back

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

Front

What is a two-way table?

Back

A two-way table is a statistical table that displays the frequency distribution of two categorical variables.

Front

How do you calculate relative frequency from a two-way table?

Back

Relative frequency is calculated by dividing the frequency of a specific category by the total number of observations.

Front

What is the purpose of using scatterplots?

Back

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

Front

What does a nonlinear association in a scatterplot indicate?

Back

A nonlinear association indicates that the relationship between the two variables does not follow a straight line.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that differ significantly from other observations and can affect the overall interpretation of the data.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.