備考CFA考試是不是掌握了CFA知識？CFA考試題是不是已經(jīng)做好了？是不是掌握了考試題？能在規(guī)定的時間內(nèi)將CFA考試題做對？這在考試中是很重要的，需要考生在備考中加強練習(xí)的，有需要跟著小編一起看看吧！
A sample of 240 managed portfolios has a mean annual return of 0.11 and a standard deviation of returns of 0.23. The standard error of the sample mean is closest to:
A. 0.01485.
B. 0.00096.
C. 0.00710.
解析：選A。樣本標(biāo)準(zhǔn)誤 = 總體標(biāo)準(zhǔn)差 / 樣本量的平方根 = 0.23 / (240)^0.5 = 0.01485
A fund manager would like to estimate the probability of a daily loss higher than 5% on the fund he manages. He decides to use a method that uses the relative frequency of occurrence based on historical data. The resulting probability is best described as a(n):A. subjective probability.
B. a priori probability.
C. empirical probability.
解析：選C。要區(qū)分幾種概率的定義：
經(jīng)驗概率(empirical probability)：根據(jù)歷史數(shù)據(jù)來估計
先驗概率(priori probability)：通過對問題的推理來推斷出概率
其中，經(jīng)驗概率與先驗概率屬于客觀概率(objective probabilities)
主觀概率(subjective probability)：基于個人或主觀判斷
備考CFA除了掌握CFA知識外，需要考生練習(xí)CFA考試題，有需要CFA考試題練習(xí)的可以到融躍CFA官網(wǎng)上看看，這邊有CFA考試題庫可以協(xié)助考生練習(xí)，有需要可以在線咨詢或者添加老師微信。
