The quarterly returns for a group of 56 mutual funds with a mean of 2.7% and a standard deviation of 4.6% can be modeled by a Normal model. Based on the model N(0.027,0.046), what are the cutoff values for the a) highest 40% of these funds? b) lowest 20%? c) middle 80%? d) highest 80%? a) Select the correct choice and fill in any answer boxes in your choice below. (Round to two decimal places as needed.) OA. X 3.85% b) Select the correct choice and fill in any answer boxes in your choice below. (Round to two decimal places as needed.) OA. X> % O B. % O C. %