Here is the cost ($million) of production of a sample of 10 manufacturing companies in 2020 who produce carbonated drinks. Company Cost ($ million) 1 15 2 21 3 68 4 31 5 57 6 26 7 43 8 12 9 23 10 17 Here = 313 and 2 = 12,987. (a) Calculate the mean, median, and standard deviation. Which measures of central tendency (mean or median) would you recommend? Why? (b) What is the cost of production above which top 15% companies lie? (c) Draw a stem-and-leaf plot indicating leaf unit. What is the leaf unit? Describe the shape of the distribution.