5. What is the mode for data given below? An eye clinic sister noted the eye-colour of 100 consecutive patients. The results are shown in Figure: 80 70 60 Number of patients 8 868 10- Brown Blue Grey Green Eye colour6. The table shows the concentration of chlorhexidine (mg) in 15 1-mL samples that have been removed from a stock solution (5 L) and assayed by ultraviolet spectroscopy. Calculate the 95% confidence interval of the population mean. Table 6.3 Concentration of chlorhexidine (mg/ml) in 15 samples removed from a stock solution 0.201 0.205 0.203 0.205 0.200 0.212 0.210 0.211 0.209 0.199 0.209 0.211 0.215 0.216 0.205