Scatter Plots & Associations

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 the context of 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 negative association in a scatter plot?

Back

A negative association can be identified when the points in the scatter plot slope downwards from left to right.

Front

What is a non-linear association in a scatter plot?

Back

A non-linear association occurs when the relationship between the variables does not follow a straight line, indicating a more complex relationship.

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.

Front

What is the significance of outliers in a scatter plot?

Back

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

Front

What type of data is best represented by a scatter plot?

Back

Scatter plots are best used for quantitative data where both variables are numerical.

Front

What does it mean if a scatter plot shows 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 between the variables.