Assuene that the equity risk premium is nomilly dserbuted with a population mean of 6 percent and a population saandad deviaton of 18 percent, Over the last four yearn, equry rehams (relabere 50 the risk fiee rabe) have averaged -20 percent. You have a large clent who is very upset and claims that results this poor ahould nerver pecur. What is the probatalty of a -20 Brokiatilly rounded to two decimal places, so in the format 0.xx