1)Investigate the comparative pros and cons of the mean and the median. Find examples where the mean is more appropriate than the median and vice-versa. Discuss the locations of the mean median and mode for a normal left-skewed and right-skewed distributions. When providing examples cite your sources.2)There are five elements of a comprehensive environmental management system: waste minimization and prevention demand-side management design for environment product stewardship and full-cost accounting.Part 1: Name two companies that have incorporated all five elements into their environmental management programs. Describe how these elements have been incorporated.Part 2: What one company has fallen short on one or all of these elements? Where has it fallen short?Provide examples and research to support your thinking.