/* Lesson 11-3 */
 /*    File Name = les1103.sas   06/27/02   */

options linesize=72 pagesize=20;

data pair;
  input x y @@;
  dif=x-y;
cards;
  3.51 3.39  3.07 3.39  3.29 3.20  3.03 3.11
  3.38 3.17  3.30 3.09  3.15 3.17  3.25 3.09
;

proc print data=pair;
run;
proc univariate data=pair plot;
  var dif;
run;