In this problem, there is a given f(x) (continuous case)
and they say that U=X and v=X²
the first question is
a)find that Cov(U,V) = 0 which is easily done
b)show that U and V are DEPENDANT.
Now I know that if U and V and independant, Cov(U,V) = 0
although the converse is not true.
But now, how do I show that U and V are dependant?