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Comparing standard deviations without calculation Three distributions, labeled (a), (b), and (c) are represented below by their histograms. Each distribution is symmetrical and is made of 10 measurements. Without performing any calculations, order their respective standard deviations o, Ob, and ac. (a) (b) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 (c) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 X