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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.) 7.12 (1.43) 7.08 (1.44) 7.21 (1.40)
1 13 0.39% 7 0.30% 6 0.60%
2 15 0.45% 13 0.56% 2 0.20%
3 57 1.70% 45 1.93% 12 1.20%
4 65 1.94% 50 2.14% 15 1.50%
5 229 6.84% 170 7.27% 59 5.89%
6 456 13.63% 324 13.86% 132 13.17%
7 1129 33.74% 764 32.69% 360 35.93%
8 1010 30.19% 725 31.02% 284 28.34%
9 243 7.26% 158 6.76% 85 8.48%
10 129 3.86% 81 3.47% 47 4.69%
Missing 11
(0.33%)
8
(0.34%)
3
(0.30%)
Total 3357 100% 2345 100% 1005 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.