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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.) 7.26 (1.37) 7.17 (1.36) 7.44 (1.36)
1 4 0.14% 4 0.20% 0 0.00%
2 4 0.14% 3 0.15% 1 0.12%
3 37 1.30% 24 1.22% 13 1.50%
4 53 1.87% 43 2.18% 10 1.15%
5 190 6.69% 149 7.56% 40 4.62%
6 321 11.30% 234 11.87% 87 10.05%
7 967 34.05% 673 34.15% 293 33.83%
8 894 31.48% 627 31.81% 267 30.83%
9 227 7.99% 134 6.80% 93 10.74%
10 143 5.04% 80 4.06% 62 7.16%
Missing 10
(0.35%)
8
(0.40%)
2
(0.23%)
Total 2850 100% 1979 100% 868 100%

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.