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age (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 (age)
 All RsFemaleMale
Mean (Std. Dev.) 19.35 (0.55) 19.33 (0.55) 19.39 (0.56)
18 131 3.95% 91 4.00% 39 3.79%
19 1891 57.03% 1332 58.55% 552 53.70%
20 1294 39.02% 852 37.45% 437 42.51%
21 0 0.00% 0 0.00% 0 0.00%
22 0 0.00% 0 0.00% 0 0.00%
23 0 0.00% 0 0.00% 0 0.00%
24 0 0.00% 0 0.00% 0 0.00%
25 0 0.00% 0 0.00% 0 0.00%
Missing 0
(0.00%)
0
(0.00%)
0
(0.00%)
Total 3316 100% 2275 100% 1028 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.