Left panel: distance modulus as a function of redshift. The dots are coloured according to the SN survey and indicate the distance modulus μ_data computed from the data on each SN in the sample. The black line indicates the distance modulus μ_theo computed theoretically for the values of { Ω_M,Ω_Λ,H₀ } estimated from the complete sample. The black dashed and black dotted lines indicate the distance modulus for two extreme cases: Ω_M = 0,Ω_Λ = 1 and Ω_M = 1,Ω_Λ = 0, respectively. Right panel: Markov chain of one realization. The dots indicate the entries in the Markov chain. The position in the graph indicates the values of (Ω_M,Ω_Λ) of each entry according to the axes, whereas the coloured dots indicate the value of H₀ according to the side colour bar. The dashed line represents Ω_M + Ω_Λ = 1 and the dotted line represents Ω_M/ 2−Ω_Λ = 0.