I need some help understanding where I am going wrong.
The CFA Level II Quant Section (Page 285) has a data set from the IMF. It uses it to illustrate the Sample Covarience and Standard Deviation. The Sample Data is thus:
X Y
.1166 .0676
.0915 .0519
.1060 .0815
.0575 .0339
.1258 .0758
.0634 .0509
They are calculating the sample corelation coefficient as .8702
When I input the data into the BAII Plus Professional, the STAT function shows r as equaling .8704 (rounded).
WHAT ACCOUNTS FOR THE VALUATION DIFFERENCE BETWEEN THE CFAI AND OUR CALCUATORS?作者: Analyze_This 时间: 2011-7-11 19:03
It's rounding error. Don't waste your time over 2 pips.作者: RMontgomery 时间: 2011-7-11 19:03
BA 2 PLUS USES SAMPLE CORRELATION .
AS Andrew3032 SAID , i think they used excel
becuase with .8702 covariance would be .00043677
as well in calculator is .0043688作者: ryanlb 时间: 2011-7-11 19:03
Okay. Thanks everyone. Best to be precise with this.
