The graph plots probability density against theta zero in metres. Four curves correspond to theta values of 0.5 metres, 1 metre, 2 metres, and 5 metres. The peaks move from about 0.49 to 3.75 as theta increases. The distributions widen significantly for larger theta, indicating increased spread. Each curve includes labelled mean, standard deviation, and epsilon percent values.
Best-fitted probability density functions (pdfs) of for varying at