A. Calculate the skew sales per store using this sample data

74, 49,4, 33, 82, 76

B. Calculate the coefficient of variation for sales per store using this sample data

91, 53, 71,4, 30, 16

C. Using the Empirical Rule, in a normal distribution what percentage of values would fall into an interval of -12 to 60 where the mean is 24 and standard deviation is 12? Please format to 3 decimal places.

D. Calculate the z score for products sold per store x = 15 products. Use this sample data.

81,0, 41,0, 32, 97