新用戶掃碼下載
掃碼下載APP
及時接收最新考試資訊及
備考信息
"quantity"exercise:Sampling and Estimation
學(xué)習(xí)是一個不斷積累的過程，每天學(xué)習(xí)一點，每天進(jìn)步一點！為了幫助大家更高效地備考2021年CFA考試，正保會計網(wǎng)校每日為大家上新CFA習(xí)題供大家練習(xí)。讓網(wǎng)校與您一起高效備考2021年CFA考試，夢想成真！
Questions 1:
The following information applies to a portfolio composed of Fund A and Fund B:
The portfolio's standard deviation of return is closest to:
A、 7.38%.
B、 8.80%.
C、 8.35%
Questions 2:
A mutual fund manager wants to create a fund based on a high-grade corporate bond index. She first distinguishes between utility bonds and industrial bonds; she then, for each segment, defines maturity intervals of less than 5 years, 5 to 10 years, and greater than 10 years. For each segment and maturity level, she classifies the bonds as callable or noncallable. She then randomly selects bonds from each of the subpopulations she has created. For the manager’s sample, which of the following best describes the sampling approach?
A 、Simple random
B、 Systematic
C 、Stratified random
View answer resolution
【Answer to question 1】C
【analysis】
【Answer to question 2】C
【analysis】
C is correct. In stratified random sampling, one divides the population into subpopulations and randomly samples from within the subpopulations.
A is incorrect. The approach described is called stratified random sampling. In stratified random sampling, one divides the population into subpopulations and randomly samples from within the subpopulations.
B is incorrect. The approach described is called stratified random sampling. In stratified random sampling, one divides the population into subpopulations and randomly samples from within the subpopulations.
成功=時間+方法，自制力是這個等式的保障。世上無天才，高手都是來自刻苦的練習(xí)。而人們經(jīng)常只看到“牛人”閃耀的成績，其成績背后無比寂寞的勤奮。小編相信，每天都在勤奮練習(xí)，即使是一點點的進(jìn)步，大家一定可以成為人人稱贊的“牛人”。更多CFA考試資訊，點擊了解>
學(xué)員討論（0）
推薦閱讀
特許金融分析師限時免費資料
-
CFA報考指南
-
CFA考試大綱
-
CFA歷年
-
CFA學(xué)習(xí)計劃
-
CFA思維導(dǎo)圖
-
CFA備考建議
新用戶掃碼下載
京公網(wǎng)安備 11010802044457號
