FOUR PRACTICE PROBLEMS--PERMUTATIONS AND …

2. Imaginary Lottery Game. The Lottery Commission is considering a new game in which five balls would be withdrawn from a box containing 10 balls, numbered 0 to 9. The five balls would come out of the box at nearly the same time, as they do in the current Lotto game, in which six balls come out of a box into a tube at nearly the same time. ................
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