a 25. Use the following data to answer the question below. Suppose over the past several decades the average annual return on the S&P 500 equals 10%. Suppose the standard deviation of these annual returns equals 20%. Assuming that S&P 500 returns follow a normal distribution, what's the probability that next year the S&P 500 return will be above 50% or below -30%? A) About 95% B) About 68% C) About 32% D) About 5% E) Less than 1%