e is 0. The second moment is the Fisher information: = rx(e)i = E [(( a — In f(X;6))) 2 10] 88; where, for any given value of 0i, the expression El..10) denotes the conditional expectation over values for X with respect to the probability function f(X; 0) given 0. Note that 0 ≤ i(0); < EFTA00624255