DATA

DATA exam1;


INPUT group $ score @@;

CARDS;

R 7 R 8 R 6 R 8 R 9 R 6 R 7 R 8 R 7 R 7

Y 8 Y 6 Y 9 Y 9 Y 6 Y 7 Y 9 Y 6 Y 8 Y 9

W 9 W 7 W 7 W 9 W 9 W 7 W 6 W 7 W 10 W 8

G 6 G 8 G 9 G 5 G 8 G 5 G 7 G 4 G 5 G 7

B 6 B 7 B 6 B 7 B 5 B 7 B 6 B 4 B 8 B 6

;

PROC SORT DATA=exam1;


BY group;

RUN;

PROC MEANS DATA=exam1;

CLASS group;

RUN;



PROC UNIVARIATE DATA=exam1;

BY group;

RUN;