Correlation coeficient

Hello everybody,

How can I get in Matlab correlation coefficient of a continuous distribution.

The density function of a continuous distribution is: f=1/6(4x-y)

I have no idea about doing this, Please can someone help me?

[Tom Lane]

At x=0 and y=1, your density has the value -1. Can you say anything more about how to interpret this? For example, is the density defined over a region that you did not specify?