Distribution of Stock Returns The average return for large-cap domestic stock funds over the three years 2009-2011 was 14.7%. Assume the three-year returns were normally distributed across funds with a standard deviation of 4.4%. Average return % (decimal form) 0.147 Return standard deviation % (decimal form) 0.044 a. What is the probability an individual large-cap domestic stock fund had a three-year return of at least 20% (to 4 decimals)? b. What is the probability an individual large-cap domestic stock fund had a three-year return of 10% or less (to 4 decimals)? c. How big does the return have to be to put a domestic stock fund in the top 10% for the three-year period (to 2 decimals)