CFA特许金融分析师考试真题Word文档下载推荐.docx

1、D.150,363An swer: BThere are seve n annual periods betwee n I January 1996and 31 December 2002, the market value of the portfolio2.Which of the following statements about standarddeviati on is most accurate? Stan dard deviatio n:A.is the square of the varia nee.B.can be a positive nu mber or a n ega

2、tive nu mber.C.is denomin ated in the same un its as the orig inal data.D.is the arithmetic mean of the squared deviati ons fromthe mean. CThe arithmetic average of the squared deviati ons aroundmean is the varianee. The standard deviation is the positive square root of the varia nee and is denomin

3、ated in the same un its as the origi nal data3.An an alyst developed the followi ng probabilitydistributi on of the rate of return for a com mon stock Seen arioProbability Rate of Retur n10.25 0.0820.50 0.1230.25 0.16The sta ndard deviati on of the rate of return is closest toA.0.0200B.0.0267C.0.028

4、3D.0.0400CExpected value=0.12Varia nce=0.0008Sta ndard deviatio n=0.0284.A com mon stock with a coefficie nt of variati on of 0.50has a （n）:A.Varianee equal to half the stock s expected returnB.Expected return equal to half the stock s varianeeC.Expected return equal to half the stock s standard dev

5、iati onD.Standard deviation equal to half the stock DThe coefficient of variation is a measure of relativedispers ion that in dicates how much dispers ion exists relative to the mea n of the distributio n the coefficie nt of variati on is the sta ndard deviatio n divided by the mean5.If no other est

6、imator of a given parameter has asampling distribution with a smaller varianee, the estimatorused is best characterized asA.accurateB.efficie ntC.un biasedD.con siste ntAn ewser B. An un biased estimator is efficie nt if no otherunbiased estimator of the same parameter has a sampling distributio n w

7、ith smaller varia neeearned a geometric mean return of 5 percent between 1 January 1996 and 31 December 2002. The arithmetic mean return for the same period was 6 perce nt. If the market valueof the portfolio at the beginning of 1996 was $100,000, themarket value of the portfolio at the end of 2002

8、was closest tomean is the varianee. The standard deviation is the positivesquare root of the varia nee and is denomin ated in the same un its as the origi nal datadistributio n of the rate of return for a com mon stockSee nario Probability Rate of Retur n s expectedreturn5.If no other estimator of a

9、 given parameter has a sampling distribution with a smaller varianee, the estimator1.What are the mean and standard deviation of asta ndard n ormal distributi on?Mean Stan dard deviati onA 0 0B 0 1C 1 0D 1 1 B. The sta ndard n ormal distributi on （un it n ormal distribution） has a mean of zero and a standard deviationde