5. Calculate the population covariance and correlation of the following series: Series #1 21% 53% 83% 19% Series #2 20% 32% 80% 40% 6. Calculate the population mean, standard deviation, and skewness of each of the following two series: Series #1-51-21 21 51 Series #2 -61 -7 33 35 7. Calculate the population mean, standard deviation, and kurtosis for each of the following two series: Series #1 -23 -7 7 23 Series #2 -17-17 17 17