The quarterly return for a group of 50 mutual funds with mean of 2.8% amd standard deviation of 5.1%--can be modeled by a normal model. Based on the model N (0.028, 0.051). what are the cutoff values for
**Please explain and use greater than or less than symbols
A) highest 20% of the funds
B) lowest 30%
C) middle 80%
D) highest 70%