8 BW (Scatterplots Review) 12/17

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 axis.

Front

What does a positive association in a scatterplot indicate?

Back

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

Front

What does a negative association in a scatterplot indicate?

Back

A negative association indicates that as one variable increases, the other variable decreases.

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 the purpose of a scatterplot?

Back

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

Front

How can you identify a positive association in a scatterplot?

Back

A positive association can be identified when the data points trend upwards from left to right.

Front

How can you identify a negative association in a scatterplot?

Back

A negative association can be identified when the data points trend downwards from left to right.

Front

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

Back

A nonlinear association means that the relationship between the variables does not follow a straight line; it may curve or change direction.

Front

What is the significance of the slope in a scatterplot?

Back

The slope indicates the direction and strength of the relationship between the two variables.

Front

What is an example of a positive association in real life?

Back

An example of a positive association is the relationship between hours studied and test scores; generally, more study time leads to higher scores.