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An analysis of 50 train derailment incidents identified the main causes listed below, where t denotes bad track, e denotes faulty equipment, h denotes human error, and o denotes other causes (based on data from the federal railroad administration). t t t e e h h h h h o o h h h e e t t t e t h o t t t t t t t h t t h e e t t e e t t t h t t o o o construct the relative frequency distribution.
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An analysis of 50 train derailment incidents identified the main causes listed below, where t denote...
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