Parameter uncertainty covariances and parameter parent distributions of light curve parameter based on TESS data analysis. We show the results from JKTEBOP task8 (MC, 5000 samples). We plot 16%, 50% and 84% quantiles for each histogram and 1σ, 2σ and 3σ confidence regions as contours. A strong negative correlation is found between the inclination (i) and sum of fractional radii (r_A + r_B). We omit the explicit calculation of the correlation coefficients. The orbital period (P) and reference epoch (T₀) have been omitted since their covariance has been minimized by construction already. We do not show the results from PB-RP due to a low number of samples resulting in technical complications in rendering correct confidence limits. However, parameter covariances between MC and PB-RP are similar. The plots were generated with CORNER (Foreman-Mackey 2016).