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physattr (in Demographics)

Variable Summary Undergrad Freshman Sophomore Junior Senior
Sexually active students: Undergrad Freshman Sophomore Junior Senior
Casual-sexually active students: Undergrad Freshman Sophomore Junior Senior

students (physattr)
 All RsFemaleMale
Mean (Std. Dev.) 7.22 (1.37) 7.16 (1.36) 7.35 (1.36)
1 35 0.26% 24 0.25% 11 0.28%
2 54 0.40% 38 0.40% 16 0.41%
3 158 1.18% 121 1.28% 37 0.95%
4 219 1.64% 179 1.90% 40 1.03%
5 849 6.36% 645 6.84% 204 5.25%
6 1614 12.09% 1181 12.52% 430 11.06%
7 4584 34.34% 3229 34.24% 1341 34.48%
8 4246 31.81% 3012 31.94% 1225 31.50%
9 1029 7.71% 674 7.15% 354 9.10%
10 561 4.20% 327 3.47% 231 5.94%
Missing 23
(0.17%)
17
(0.18%)
6
(0.15%)
Total 13372 100% 9447 100% 3895 100%

These tables reflect only undergraduates attending 4-year colleges who are of normative age -- 18, 19, 20, 21, or 22, +/- 1, for freshman, sophomores, juniors, and seniors, respectively.