Results of the cosmological fit for sample 1 in a spatially flat ΛCDM with matter and energy density parameters fixed to the values Ω_M = 0.3 and Ω_Λ = 0.7 (red, model 4 in Table 1), and Ω_M = 0.9 and Ω_Λ = 0.1 (blue, model 6 in Table 1). The slope and intercept are assumed to evolve with redshift as γ(z) = γ₀ + γ₁(1 + z) and β(z) = β₀ + β₁(1 + z). Contours are at 68% and 95% confidence levels. The input values of all the correlation parameters are marked by the black square. See Section 6.2 for details.