You must know calculus, at least that the integral of xN = 1/(N+1)xN+1 . Define the Pareto distribution as:
f(x) = abax-(a+1) or Cx-(a+1) where C = aba (a constant)
Remember that the pdf is defined...
Use the following integral to find the first and second moments. The mean is, of course, the first moment and the variance is the second moment minus the first moment...
It is a theoretical probability distribution. I have included two links from the internet which describe the distribution and some of its applications.
Sometimes in statistics, we are more...