Sweet but Mean

Sweet but Mean

A Tale of Three Trees (winter-bare, foreground):  All were planted as seedlings at the same time, yet one (on right) is over twice as tall as the one in the middle; the tree on the left rises somewhere between the others.  Together, these persimmon trees (Diospyros kaki 'Fuyu') illustrate regression towards the mean.  And because the Fuyu variety of persimmon is non-astringent, it tastes sweet.  We think sweet but "mean" packs a powerful punch - and it's a yummy way to grasp a statistical concept.
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