Sanjay is researching if female students are more or less likely than male students to have received extra credit at a large university. He takes a random sample of students. Here are his results: What is Sanjay researching?
1) The impact of extra credit on female students
2) The impact of extra credit on male students
3) The likelihood of female students receiving extra credit compared to male students
4) The likelihood of male students receiving extra credit compared to female students