Good practice: Creating a permanent data set
Whenever you create a permanent data set, always document it by running Proc Contents.
That is, the job that created SURVEY1 should include these two steps:

LIBNAME Library '/bios524/classlib';
DATA Library.SURVEY1;
   INPUT SUBJ GENDER :$1. HEIGHT WEIGHT YEAR;
DATALINES;
1 M 68 155 91
7 F 72 205 90
9 M 66 120 93
;
PROC CONTENTS;

You may also want to print the data using PROC PRINT but always document the results of your job. The whole point of this job was to build the SURVEY1 file for future analysis. Document it.