Câu 13: A00-211: SAS Base Programming for SAS 9

Given the SAS data set PRICES:Prodid price producttype sales returnsK125 5.10 NETWORK 15 2B132S 2.34 HARDWARE 300 10R18KY2 1.29 SOFTWARE 25 53KL8BY 6.37 HARDWARE 125 15DY65DW 5.60 HARDWARE 45 5DGTY23 4.55 HARDWARE 67 2The following SAS program is submitted:data hware inter cheap;set prices(keep = productype price);if producttype = HARDWARE then output hware; else if producttype = NETWORK then output inter; if price le 5.00; run; if producttype = HARDWARE then output hware; else if producttype = NETWORK then output inter; if price le 5.00; run;How many observations does the HWARE data set contain?

1. A. 0
2. B. 2
3. C. 3
4. D. 4 — đáp án hiện tại