Students need help!

Hi, I am new on reddit I am a high school student and our math teacher has told us to do an assignment in order to practice statistics. We need to do an anonymous survey on whatever topic we feel like and then we need to do a paper in which we calculate the mean, standard deviation etcetera in order to make graphs with excel and make a presentation at school. I live in a small town, so there aren’t many people to ask. My topic is: Are you married or have a relationship with someone? If so, how much time have you been together? All ages can respond to these questions. Thank you!