Joint pdf given as kxy for 0 < x < y < 1.
Find the value of k.
I understand the process of finding k - doing the double integral and setting it to 1. What I dont understand is the limits of integration for y.
I've seen two different limits set, but I still cannot seem to figure out how and why it is done.
I have seen the integral of x from 0 to 1 and the integral of y from x to 1. I have also seen the integral of x from 0 to 1 and the integral of y from 0 to y. Both give the correct answer of k = 8. My question is how do you go about choosing the limits for the y integral?
Thanks a lot!
Actually, I just dont understand the concept of how the bounds of y are chosen either as x to 1, or 1 to y
Now that I think about it a bit more...would x to 1 be because y > x, so the lowest y can go is x?? If that is correct, what is the rationale for 1 to y??