Scatter Plots

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 correlation in a scatter plot indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation in a scatter plot indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What does 'no association' mean in the context of scatter plots?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

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

Back

A positive linear relationship is identified by a straight line that slopes upwards from left to right.

Front

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

Back

A negative linear relationship is identified by a straight line that slopes downwards from left to right.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables and to identify trends, correlations, or patterns.

Front

What does it mean if a scatter plot shows a non-linear relationship?

Back

A non-linear relationship means that the data points do not form a straight line, indicating a more complex relationship between the variables.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far from the trend of the rest of the data, and they can significantly affect the correlation and interpretation of the data.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.