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Answers and rating deltas for

How do I sample single (random) rows that can be grouped by a column's values?

Author Votes Δ
Cath 3 +0.26
PhillipD 3 +3.20
Bernhard 1 -1.36
Dirk Nachbar 0 -3.91
Last visited: Feb 14, 2017, 5:14:20 PM