The following data is obtained from an experiment aimed at measuring the spring constant of a given spring. Different masses m are hung from the spring and the corresponding deflections δ of the spring from its unstretched configuration are measured. From physics, we know that F = kδ and here F = mg. Thus, we can find k from the relationship k = mg/δ. Here, however, we are going to find k by plotting the experimental data, fitting the best straight-line (we know that the relationship between δ and F is linear) through the data, and then measuring the slope of the best-fit line.