CFA特许金融分析师考试真题Word文档下载推荐.docx

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D.150,363

Answer:

B

TherearesevenannualperiodsbetweenIJanuary1996

and31December2002,themarketvalueoftheportfolio

2.Whichofthefollowingstatementsaboutstandard

deviationismostaccurate?

Standarddeviation:

A.isthesquareofthevarianee.

B.canbeapositivenumberoranegativenumber.

C.isdenominatedinthesameunitsastheoriginaldata.

D.isthearithmeticmeanofthesquareddeviationsfrom

themean.

C

Thearithmeticaverageofthesquareddeviationsaround

meanisthevarianee.Thestandarddeviationisthepositivesquarerootofthevarianeeandisdenominatedinthesameunitsastheoriginaldata

3.Ananalystdevelopedthefollowingprobability

distributionoftherateofreturnforacommonstockSeenario

ProbabilityRateofReturn

10.250.08

20.500.12

30.250.16

Thestandarddeviationoftherateofreturnisclosestto

A.0.0200

B.0.0267

C.0.0283

D.0.0400

C

Expectedvalue=0.12

Variance=0.0008

Standarddeviation=0.028

4.Acommonstockwithacoefficientofvariationof0.50

hasa（n）:

A.Varianeeequaltohalfthestock'

sexpectedreturn

B.Expectedreturnequaltohalfthestock'

svarianee

C.Expectedreturnequaltohalfthestock'

sstandarddeviation

D.Standarddeviationequaltohalfthestock'

D

Thecoefficientofvariationisameasureofrelative

dispersionthatindicateshowmuchdispersionexistsrelativetothemeanofthedistributionthecoefficientofvariationisthestandarddeviationdividedbythemean

5.Ifnootherestimatorofagivenparameterhasa

samplingdistributionwithasmallervarianee,theestimator

usedisbestcharacterizedas

A.accurate

B.efficient

C.unbiased

D.consistent

AnewserB.Anunbiasedestimatorisefficientifnoother

unbiasedestimatorofthesameparameterhasasamplingdistributionwithsmallervarianee

earnedageometricmeanreturnof5percentbetween1January1996and31December2002.Thearithmeticmeanreturnforthesameperiodwas6percent.Ifthemarketvalue

oftheportfolioatthebeginningof1996was$100,000,the

marketvalueoftheportfolioattheendof2002wasclosestto

meanisthevarianee.Thestandarddeviationisthepositive

squarerootofthevarianeeandisdenominatedinthesameunitsastheoriginaldata

distributionoftherateofreturnforacommonstock

SeenarioProbabilityRateofReturn

sexpected

return

5.Ifnootherestimatorofagivenparameterhasasamplingdistributionwithasmallervarianee,theestimator

1.Whatarethemeanandstandarddeviationofa

standardnormaldistribution?

MeanStandarddeviation

A00

B01

C10

D11

B.Thestandardnormaldistribution（unitnormaldistribution）hasameanofzeroandastandarddeviation

de