Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graphical representation of two variables where each point represents an observation. It helps to visualize the relationship between the variables.

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 a scatter plot?

Back

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

Front

How can you identify a linear relationship in a scatter plot?

Back

A linear relationship can be identified if the points in the scatter plot form a straight line or a pattern that closely resembles a straight line.

Front

What is the significance of the slope in a scatter plot?

Back

The slope indicates the direction and steepness of the relationship between the two variables. A positive slope indicates a positive association, while a negative slope indicates a negative association.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots are used to identify relationships, trends, and patterns between two quantitative variables, helping to visualize correlations.

Front

What does it mean if a scatter plot has a cluster of points?

Back

A cluster of points indicates that there is a concentration of data points in that area, suggesting a potential relationship or trend among those observations.

Front

What is the role of outliers in a scatter plot?

Back

Outliers are data points that fall far away from the general pattern of the scatter plot. They can significantly affect the interpretation of the relationship between the variables.

Front

How can you determine the strength of a relationship in a scatter plot?

Back

The strength of a relationship can be determined by how closely the points cluster around a line. A tighter cluster indicates a stronger relationship.