Say that the odds of making a hole in one on any given hole in a game of golf are 1 in 12,500 (actually, the odds depend on the length of the hole, the golfer's skill level, and other factors, but we'll ignore that for the purpose of this problem). What are the odds of making two holes in one in a round of golf?
The answer can be found on the answers page.
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If you're interested in learning more about holes in one, you can read this article.