S S P = T − T ! ! ª S T = T − ! ! " = − = & & ! b. N(2 < < 3) = 0 c. Fungsi kepadatan peluang u ( ) = ¥ ( ) = ! S N `− < < a = S / T ! ! P ! T ! = ¿ ! − ! = ` + a = ! ! ! ! " N(2 < < 3) = 0 / ! = 0 58