Scatter Diagram and Correlation

Scatter diagrams provide us with some ideas about the correlation between the two variables.

Exact or Vague

The scatter diagram gives us vague ideas about the correlation between the two variables. It does not provide an exact measure of the relationship between them.

Explanation

Scatter diagrams are graphical representations of the relationship between two variables. They plot data points on a graph, allowing us to visually see if there is a pattern or relationship between the variables. While scatter diagrams can give us a general idea of the correlation between two variables (positive, negative, or no correlation), they do not provide precise measures of correlation like correlation coefficients do. Therefore, the information obtained from a scatter diagram is more qualitative than quantitative, giving us a rough sense of the relationship between the variables rather than an exact measure.

In conclusion, while scatter diagrams are useful for detecting patterns and relationships between variables, they only provide vague ideas about the correlation between the two variables. For more precise information, it is necessary to calculate correlation coefficients or other statistical measures.