Questions tagged [distribution]

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Distribution of the number of clover leaves

Being no expert at all in this field I am just interested in emprical studies of the frequency $f(n)$ of clover plants with a given number $n$ of leaves. I would suspect naively from general ...
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Why did the armadillo cross the border?

Armadillos evolved in South America. When the continent was joined with North America, one species - the nine-banded armadillo - spread north into Middle America. Apparently, the armadillo reached ...
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What limited the brown bear's North American range?

Black bears range across North America, except for open areas like grasslands and tundra. It's generally assumed that they're simply vulnerable to attacks by larger brown bears and need trees as a ...