没明白这题问的什么意思
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For a portfolio including four securities, how many distinct covariance terms are needed to compute the portfolio variance of return?
您的回答, 正确答案是: A
A
正确6
B
12
C
4
数据统计(全部)
做对次数: 1256
做错次数: 412
正确率: 75.30%
数据统计(个人)
做对次数: 1
做错次数: 0
正确率: 100.00%
解析
A is correct. For four securities, there are 4*(4-1)/2=6 distinct covariance terms to estimate.
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