That is similar to strategy 2 above where the balls were not replaced during the draw. They do not select a ball, throw it back in and then select again. That would mean one could select the same ball twice in a draw which is not the case. Each draw starts with a full set of balls. In this example, as in the real lottery, one can bet any number, i.e. any combination, play any number of tickets and balls are replaced before but then not during each draw.
Strategy affects chance value.
I am a software designer. When the British National Lottery began, my fascination focused on applying probability theory in practice. From a mathematical perspective, I think the lottery is a wonderful system. I could give you the solution. Just think about it.