Correlation between luminosity L_b, z, the end time T_b, z, and the spectral peak energy E_p, i. Here we set Ω_m = 0.315 and H₀ = 67.36 km s⁻¹ Mpc⁻¹ for our calculations. The data points are the GRBs in the X-ray (upper left) and optical samples (upper right). The blue line corresponds to the best-fitting values of the data points with a 95% confidence band. The bottom panels show the 2D posterior contour corner diagrams for the X-ray (left panel) and optical samples (right panel).