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- UID
- 223269
- 帖子
- 210
- 主题
- 94
- 注册时间
- 2011-7-11
- 最后登录
- 2013-9-26
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you can solve covariance on the calculator by inputting X and Y values.
and then solving for sigmax, sigma y, and roe (remember to take sample sigmas if they give you a sample)
cov = roe * (sigmax * sigmay) |
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发表于 2011-7-11 18:23
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