Given the SAS data set WORK.PRODUCTS:
| ProdId | Price | ProductType | Sales | Returns |
| K12S | 95.50 | OUTDOOR | 15 | 2 |
| B132S | 2.99 | CLOTHING | 300 | 10 |
| R18KY2 | 51.99 | EQUIPMENT | 25 | 5 |
| 3KL8BY | 6.39 | OUTDOOR | 125 | 15 |
| DY65DW | 5.60 | OUTDOOR | 45 | 5 |
| DGTY23 | 34.55 | EQUIPMENT | 67 | 2 |
The following SAS program is submitted:
data WORK.OUTDOOR WORK.CLOTH WORK.EQUIP;
set WORK.PRODUCTS;
if Sales GT 30;
if ProductType EQ ‘OUTDOOR’ then output WORK.OUTDOOR;
else if ProductType EQ ‘CLOTHING’ then output WORK.CLOTH;
else if ProductType EQ ‘EQUIPMENT’ then output WORK.EQUIP;
run;
How many observations does the WORK.OUTDOOR data set contain?
A. 1
B. 2
C. 3
D. 6
Answer: B
注解：Outdoor data set中的数据需要满足2个条件，Sales大于30以及ProductType为OUTDOOR，只有第四和第五个observation满足条件。