Linear regression fit of the correlation between cell density and MCHC in normal human RBCs. The points represent data from Table 1, column 2 plotted against column 3. The regression coefficient was r² = 0.996. The following equation reports the parameters of the fit and can be applied to estimate intermediate and extrapolated data within and outside the measured range: density = 0.00304^*MCHC + 0.994.