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你好,关于自由度,上课只是说自由度越高,越接近标准正态分布,但是并没有讲解有关计算,见原版书课后题目第39页第4题,我们不是已经背了,置信区间为99%,对应的可靠因子为2.58,那本题为什么同自由度有关系呢,是怎样计算的?
The nominal interest rate comprises a real rate of interest: A plus a risk premium only. B plus a premium for expected inflation only. C compensation for both expected inflation and risk. 费雪不就加预期通胀吗?哪还有个risk?
查看试题 已解决Which of the following is a way for companies to adjust their stock of physical capital in a recession? A selling it at fire sale prices. B quickly canceling construction activity. C not maintaining equipment. c选项不维修装备就可以了吗?
查看试题 已回答Which of the following, holding all else constant, will most likely increase the width of the confidence interval for a parameter estimate? A Use of the t-distribution rather than the normal distribution to establish the confidence interval B Increase in the sample size C Reduction in the degree of confidence 降低自由度不是也可以加宽置信区间吗?
查看试题 已回答精品问答
- Effective duration和Effective convexiy的公式为什么不用modified duration和convexity的原本公式,而是和他们的近似的久期和突性的公式一致?
- Risk Budget and risk parity 第二道思考题,里面的Variance是不是完全是个冗余信息,给来误导的呀?
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- 为什么半年付息 算ytm是乘以2 而年化的麦考利久期是除以2
- 为什么长期垄断竞争中 D和ATC相切
- Growth due to capital deepening 是αΔK/K还是ΔK/K
- m上升 EAR为什么上升 以及为什么又不变
- 为什么TC 的切点对应是AVC的最低点?







