nag_bivariate_students_t (g01hcc) Example Program Results a1 b1 a2 b2 df rho Tail p -Inf 4 -Inf 0.8 8 0.6 Nag_LowerTail 0.7764 -40 2 0 4 12 -0.2 Nag_Central 0.4876 -2 Inf 8 Inf 2 0.3 Nag_UpperTail 0.0059