Hi,
I got task to do but I don't know how could it be done ;/
I have to match regression function y=a/(1+exp((b-x)/c)) with data form car library, named USPop, then draw it and check assumptions of this model.
Could sb help me, please 
Hi,
I got task to do but I don't know how could it be done ;/
I have to match regression function y=a/(1+exp((b-x)/c)) with data form car library, named USPop, then draw it and check assumptions of this model.
Could sb help me, please