The first parameter may differ between {HEAD ~ the different units} of the generating plant, in {TAIL ~ one case} the first parameter of a unit being 100% and the first parameter of the rest null or all the first parameters identical or any other possible distribution 
The first parameter may differ between { HEAD ~ the different units } of the generating plant , in { TAIL ~ one case } the first parameter of a unit being 100 % and the first parameter of the rest null or all the first parameters identical or any other possible distribution
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH