Results of fσ₈ measurements for all the scenarios in different redshift bins. Left: Full sample. Center: Spec-z sample. Right: Photo-typed sample. For each scenario, the top panel shows the results of the fit for each of the eight LSST realizations together with the mean value, and the bottom panel shows the mean values of σ_fσ8/fσ_8, fid, which are the relative errors on the growth-rate measurements. The averages are plotted at the mean redshift positions, while the results for the individual realizations are slightly shifted along the abscissa for clarity. The colored bars show the redshift range used for each fσ₈ measurement; the bars have the same colors as the measurements.