If anybody could help me out with these questions it would be much appreciated. Thank you in advance!

Practice Problem - Consider the following table which denotes price information and dividend information for the KO company. Assume that the dividend is paid the last day of the month. - Find the average monthly return of KO in both decimal and percentage format - Find the variance and standard deviation of returns in decimal and percentage (or percentage squared) format. - Find the 95% confidence interval for the monthly returns of the KO company 1) The return for September 2018 is a Not Applicable b .012 in decimal format c 0.742% in percentage format d 1.22% in percentage format 2) The Variance of the return is a 0.002557 percentage format b 25.57 percentage format c 25.57 percentage squared format d None of the above Practice Problem Continued The Standard Deviation of KO Returns is a) 25.57 percentage squared b) 0.05057 in decimal format c) 5.057% in percentage format d) both b and c are correct e) None of the above The 95% confidence interval for KO Return is a) between 0.24% and 10.654% b) between 6.81% and 13.01% c) Cannot answer the question without the average return d) none of the above