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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.) 6.99 (1.47) 6.95 (1.44) 7.08 (1.54)
1 22 0.42% 15 0.42% 7 0.43%
2 31 0.59% 18 0.50% 13 0.79%
3 90 1.72% 57 1.60% 33 2.01%
4 126 2.41% 89 2.50% 37 2.26%
5 476 9.11% 346 9.70% 129 7.87%
6 734 14.05% 524 14.69% 208 12.68%
7 1793 34.32% 1217 34.13% 568 34.63%
8 1419 27.16% 979 27.45% 435 26.52%
9 338 6.47% 219 6.14% 118 7.20%
10 195 3.73% 102 2.86% 92 5.61%
Missing 11
(0.21%)
7
(0.20%)
4
(0.24%)
Total 5235 100% 3573 100% 1644 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.