In 2010 Walmart was fined about $27.6M for improperly disposing of hazardous waste (pesticides, bleach, etc. were being dumped in sinks and storm drains). In response Walmart instituted a nationwide training program for waste disposal. Despite this, in 2013 Walmart was fined $81.6M for again improperly disposing of hazardous waste. After, the company changed the training program. For example, hazardous waste is now sorted into color coded buckets and employees have hand held terminals with disposal instructions. a. After Walmart was fined and instituted the training program, but before the second fine, was the risk of improper disposal most likely an unknown unknown, an known unknown, or a unknown known? Explain. b. Prior to the first fine, was the probability of an improper disposal random or uncertain? c. Which of the 4 steps in the definition of risk management was most likely not followed after the training program was first instituted? Explain. d. Consider the four methods of learning about unknown unknowns in the notes. After the training program was first instituted, explain why or why not each method was likely to have discovered that employees were still not disposing of waste properly prior to the second fine