Kevin is dismayed to find out from his doctor that he has the second most common STD contracted by American adolescents. He has:

What percentage of wives outlive their husbands?

a. 90% b. 80% c. 70% d. 60%

About _____ percent of all published articles in social psychology use undergraduate college students as subjects

a. 25 b. 50 c. 75 d. 95