19 An investment opportunity has 4 possible outcomes. The possible returns in each of these outcomes are -16.2%, -8.7%, 1.7% and 38%. If each of these outcomes is equally likely, what is the Expected Return (as measured by the population mean) of this investment? Provide the answer as a % with 1 decimal rounded off. If your answer is 3.56%, just enter/type"3.6"