I have a question from a sample exam paper that I'm having some trouble figuring out.
The question is: Bavarian Sausage stock has an average historical return of 16.3% and a standard deviation of 5.3%. What is the probability that the return on Bavarian Sausage will be less than 11%?
ANS: 16% 1-.5-.34 = .16
The answer provided shows the upper and lower values to be .5 and .34 (50% and 34%). How do you arrive at these figures?