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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.) 7.27 (1.35) 7.19 (1.35) 7.44 (1.33)
1 22 0.26% 16 0.28% 6 0.22%
2 21 0.25% 13 0.22% 8 0.29%
3 111 1.30% 85 1.46% 26 0.95%
4 136 1.59% 110 1.89% 26 0.95%
5 480 5.62% 357 6.15% 122 4.48%
6 948 11.09% 689 11.87% 257 9.44%
7 2954 34.56% 2014 34.69% 932 34.23%
8 2802 32.78% 1901 32.74% 895 32.87%
9 700 8.19% 417 7.18% 282 10.36%
10 374 4.38% 204 3.51% 169 6.21%
Missing 19
(0.22%)
16
(0.27%)
3
(0.11%)
Total 8567 100% 5822 100% 2726 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.