The graph plots probability density against mean soil property mu x bar. Four curves correspond to theta values of 0.5 metres, 1 metre, 2 metres, and 5 metres. The curves shift left as theta increases, indicating decreasing mean values from about 28.82 to 25.13. Standard deviation remains similar for smaller theta and increases slightly for larger theta. Each curve is labelled with mu, sigma, and epsilon percent values.
Best-fitted probability density functions (pdfs) of for varying at