The data points that we need to plot according to the given dataset are – So let us first choose the axes of our diagram. Since the values of M is in the form of bins, we can use the centre point of each class in the scatter diagram instead. Here, we take the two variables for consideration as: Question: Draw the scatter diagram for the given pair of variables and understand the type of correlation between them. Now go through the solved example below, to understand how to make your own scatter plots and analyze them. It simply gives an idea of what association to expect between the random variables of interest. Note that the scatter diagram by itself doesn’t assign quantitative values as measures of correlation for the plots. Some such factors include the symmetry of the pattern around a particular point, the general randomness of the points etc. It is clear that the case of r = 0 may occur in many forms. Now, look at the different possible scenarios of the patterns formed in the scatter diagrams, with their corresponding coefficients of correlation values mentioned with them, below and try to make sense of them.
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