15. An investment strategy has an expected return of 12 percent and a standard deviation of expected returns of 10 percent. If investment returns are normally distributed, the probability of earning a return less than 2 percent is closest to:

Select exactly 1 answers from the following:

A. 10%. B. 16%. C. 32%. D. 34%.
答案和详解如下！
Feedback: Correct answer: B

Quantitative Methods for Investment Analysis, Richard A. DeFusco, Dennis W. McLeavey, Jerald E. Pinto, and David E. Runkle (CFA Institute, 2004), pp. 252

2006 Modular Level I, Vol. I, pp. 414-415

Study Session 3-10-o

define the standard normal distribution, explain how to standardize a random variable, and calculate and interpret probabilities using the standard normal distribution

Approximately 68 percent of the returns fall within one standard deviation (plus or minus) of the mean:

(100% ?68%) / 2 = 16%.

b

[此贴子已经被作者于2006-11-22 9:58:40编辑过]