I am trying to do a correlation test in statistics and I'm trying to decide the correct approach.

I am trying to do a correlation test in statistics and I'm trying to decide the correct approach. I want to determine the affect of drones and the number of close encounters with active registered aircraft. I have my data for all three and I am doing the calculations in StatCrunch. Is the correct way to test the number of drones against the number of close encounters?

Variables:

-number of active manned aircraft

-number of registered drones

-number of close encounters

Thank you!