Can you tell us about your RV? Make model and year would be helpful. The avatar shows a 5'ver. Is this your RV? Is the RV already wired for shore power? If so is it 30 or 50 AMP shore cord (3 male prongs is 30 AMP and 4 prongs is 50 AMP.
The bottom line is yes, an outlet can be added. A lot depends on what is already in the RV and where it is located.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours