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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.) 7.11 (1.41) 7.06 (1.42) 7.21 (1.38)
1 15 0.39% 13 0.50% 2 0.16%
2 22 0.57% 14 0.53% 8 0.65%
3 40 1.04% 32 1.22% 8 0.65%
4 87 2.25% 61 2.32% 26 2.12%
5 280 7.25% 196 7.46% 83 6.75%
6 527 13.64% 370 14.09% 156 12.69%
7 1330 34.42% 906 34.50% 421 34.26%
8 1163 30.10% 783 29.82% 377 30.68%
9 240 6.21% 155 5.90% 85 6.92%
10 160 4.14% 96 3.66% 63 5.13%
Missing 4
(0.10%)
4
(0.15%)
0
(0.00%)
Total 3868 100% 2630 100% 1229 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.