用同學(xué)
2022-05-19 21:06老師，“On a random draw, the probability of choosing a stock of a particular industry from the S&P 500.” 這里面哪里有邏輯推斷的影子？
所屬：CFA Level I > Quantitative Methods 視頻位置 相關(guān)試題
來(lái)源： 視頻位置 相關(guān)試題
1個(gè)回答
Evian, CFA助教
2022-05-19 23:21
該回答已被題主采納
ヾ(?°?°?)??你好同學(xué)，
C:
On a random draw, the probability of choosing a stock of a particular industry from the S&P 500.
解析：
A priori probability is based on formal reasoning and inspection. Given the number of stocks in the airline industry in the S&P500 for example, the a priori probability of selecting an airline stock would be that number divided by 500.
解析的意思是說(shuō)C正確。S&P500里有500只股票，如果S&P500包含航空行業(yè)的X只股票（Given the number of stocks in the airline industry ）那么在S&P500中隨機(jī)抽一只股票，這只股票屬于航空行業(yè)的概率是X/500
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