[问答] SAS Base 123题中87题 [推广有奖]

为什么答案选B?

The SAS data set BANKS is listed below:
BANKS
name rate
FirstCapital0.0718
DirectBank0.0721
VirtualDirect0.0728
The following SAS program is submitted:
data newbank;
do year = 1 to 3;
set banks;
capital + 5000;
end;
run;
Which one of the following represents how many observations and variables will
exist in the SAS data set NEWBANK?

A. 0 observations and 0 variables
B. 1 observations and 4 variables
C. 3 observations and 3 variables
D. 9 observations and 2 variables