http://i235.photobucket.com/albums/e...untitled-8.jpg

http://i235.photobucket.com/albums/e.../untitled2.jpg

Need help on the Pareto distribution, please. Thanks!

I can get the mean loss amount $\displaystyle \frac {\alpha\beta}{\alpha-1} $ but I don't understand how to get (ii) and (iii)