g r i n d e r ,

Thanks. All of what you say is largely true, although one thing that was picking at the back of my brain was what if the balls do have some history. For instance, what if the paint used to put numbers on the balls resulted in some balls being (slightly) heavier than others? Presumably then, with enough tests, it would become apparent which balls were more likely to come out. (I don't know how they are actually picked from the machine but presumibly gravity is involved somehow.) Anyway, I don't really buy that arguement, and I think there would have to be too many trials to determine if it were true.

But it is amuzing that you could make equally rational sounding aurguments for picking most common and least common balls; that's why I display both :-)

Scott

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