Is there a relation between smoking and cervical cancer?

Yes: Well, probably. It's statistical, and not so intense as for lung or throat cancer. The people who look at this stuff claim that this holds up when you control for other risky behaviors, and it does make some sense biologically. The question is also moot, since cervical cancer is preventable (vaccine, regular pap smears and follow-up for all) and there are plenty of other reasons not to smoke/.