The SASDATA.BANKS data set has five obs. when the following SAS program is submitted:

libnamesasdata 'SAS-date-library';

data allobs;

set sasdata.bank;

capital=0;

do year=2000 to 2020 by 5;

capital+((capital+2000)*rate);

output;

end;

How many obs.will the ALLOBS data set contain?

A. 5 B.15 C.20 D.25

I was wondering why the answer is D.25 rather than A.5???

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[此贴子已经被作者于2007-3-7 13:54:14编辑过]