Describing Data in Scatterplots, 8.5C

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Front

What does a positive linear relationship in a scatterplot indicate?

Back

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

Front

What does a negative linear relationship in a scatterplot indicate?

Back

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

Front

What does 'no association' mean in the context of a scatterplot?

Back

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

Front

What is a nonlinear relationship in a scatterplot?

Back

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

Front

How can you identify a positive linear association in a scatterplot?

Back

A positive linear association can be identified by points that trend upwards from left to right.

Front

How can you identify a negative linear association in a scatterplot?

Back

A negative linear association can be identified by points that trend downwards from left to right.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are points that fall far away from the general pattern of the data and can significantly affect the interpretation of the relationship.

Front

What does the slope of a line in a scatterplot represent?

Back

The slope of a line in a scatterplot represents the rate of change between the two variables.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two quantitative variables.