I need to create a map of risk of PM 2.5 exposure by populations that have asthma. I need to create an additive model that quantifies areas with high and somewhat high concentration of PM 2.5 as well as areas with high and somewhat high areas of asthma rates. I am given a tabular dataset of asthma rates, PM 2.5 point dataset derived using land use regression from EPA monitors, a vector dataset made of up zip codes, and a boundary file. How do I go about doing this? I have never done a lab without instructions and I do not know how to begin? Any help would be greatly appreciated.