1) if Z ~N ( o, 1 ) V~ X 2 ( v ) 2 and V are independent T = JV/V Tut (v ) find the POF of t ! (2) if VINX ( vi ) 3 independent V2 ~x ? (v2 ) VI/Vi = XNF ( vi,vz ) V2/12 find the pof of g (x, vi, Vz )