The only way to assume that those are synonymous would be to ask if one can freely will themselves to be random. However, even that has more to do with aptitud

The only way to assume that those are synonymous would be to ask if one can freely will themselves to be random. However, even that has more to do with aptitude and ability than free will. E.g. I can freely will myself to try and be an NBA player, but I'm bound by physical limitations. However, my inability to be an NBA player would not normally be considered a lacking of free will.