Scatter Plots 2

Front

What is a scatter plot?

Back

A scatter plot is a graphical representation of two variables, where each point represents an observation in the dataset, allowing for the visualization of relationships between the variables.

Front

What does a nonlinear association in a scatter plot indicate?

Back

A nonlinear association indicates that the relationship between the two variables does not follow a straight line, meaning that as one variable changes, the other variable changes in a non-constant manner.

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, and changes in one variable do not predict changes in the other.

Front

How can you approximate the value of a variable using a scatter plot?

Back

You can approximate the value of a variable by locating the corresponding point on the scatter plot that represents the known value of the other variable and observing the value of the variable of interest.

Front

What is the significance of the trend line in a scatter plot?

Back

A trend line summarizes the overall direction of the data points in a scatter plot, indicating the general relationship between the two variables.

Front

What type of association is indicated by a downward slope in a scatter plot?

Back

A downward slope indicates a negative association, meaning that as one variable increases, the other variable tends to decrease.

Front

What type of association is indicated by an upward slope in a scatter plot?

Back

An upward slope indicates a positive association, meaning that as one variable increases, the other variable also tends to increase.

Front

How can outliers affect the interpretation of a scatter plot?

Back

Outliers can skew the results and misrepresent the relationship between the variables, potentially leading to incorrect conclusions about the association.

Front

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

Back

Scatter plots are used to visually assess the relationship between two quantitative variables, helping to identify patterns, trends, and potential correlations.

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 a specific area, suggesting a stronger relationship or correlation between the variables in that region.