Scatter Plots and Association

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 axis.

Front

What does a positive association in a scatter plot indicate?

Back

A positive 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 does 'no association' mean in the context of a scatter plot?

Back

No association means that there is no discernible relationship between the two variables; changes in one do not affect the other.

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, showing the general direction of the data points.

Front

How can you determine the type of association from a scatter plot?

Back

You can determine the type of association by observing the direction of the data points: upward for positive, downward for negative, and scattered for none.

Front

What is the purpose of analyzing scatter plots?

Back

The purpose is to identify relationships, trends, and patterns between two variables.

Front

What does it mean if a scatter plot shows a strong correlation?

Back

A strong correlation means that the data points are closely clustered around the line of best fit, indicating a strong relationship between the variables.

Front

What does it mean if a scatter plot shows a weak correlation?

Back

A weak correlation means that the data points are more spread out and do not closely follow the line of best fit, indicating a weaker relationship.

Front

How can you describe the trend in a scatter plot?

Back

You can describe the trend by stating whether it is increasing, decreasing, or showing no clear pattern.