Suppose that X is a random variable for which the p. d.f. or the p. f. is f(x|e), where the value of the parameter 6 is unknown
but must lie in an open interval 9 Let IO(e) denote the Fisher information in X Suppose now that the parameter 6 is
replaced by a new parameter u, where e = Wu). and q: is a differentiable function. Let |1[u) denote the Fisher information
in X when the parameter is regarded as u. Show that

|1(IJ) = [w'(u)]2|0[w(u)].