Given Samples A and B below, Sample A: 4.0 4.1 3.3 4.7 2.9 4.7 2.9 3.5 4.5 Sample B: 4.7 4.0 3.6 3.7 3.1 3.4 4.6 2.2 3.6 a. Calculate the mean and standard deviation for each sample. Sample A: A = 0.00 E 0.00 Sample B: $ = 0.00 0.00 Round to two decimal places if necessaryb. Calculate the coefficient of variation for each sample. Sample A: CV = 0.00 % Sample B: CY = 0.00 % Round to two decimal places if necessaryc. Which sample is more variable? Sample A O Sample B O Neither sample is more variable than the other