With reference to the charts below, answer all of the following questions: a) The scatter plot below presents the correlation between the expenses spent on TV advertising and the sales value generated. Based on the chart, formulate a descriptive problem, a predictive problem, and a prescriptive problem that can be addressed using the scatter plot below. [max 120 words] (6 marks) Sales 1200 1000 800 600 $100 200 25 50 1'5 100 125 150