It really depends on the field. In many branches of science, statistics is really important and calculus not really at all. I'm a biomedical scientist and I use statistics every day to interpret the results of experiments. Calculus, not so much. And yet I was required to take three semesters of calculus as an undergrad, and while I took a statistics course then (and more in grad school), that was optional. It really should be the other way around.