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Bad Statistics

This graph has at least four things wrong with it, can you spot them all? (note: I previously said three, but I was lumping two together)

US Airways On-time Graph.Statistics

Additional info: The graph is based on DC-NY-Boston routes by the respective companies. The ** next to the Delta Shuttle refers to the fact that they're only counting DC-NY routes for the Delta Shuttle "statistics."

Comments (2)

joe schmoe:

where is this graph from? You are being ridiculous, overly accusatory.

Ken:

The graphic is from the USAirways Web site.

How am I being ridiculous/overly accusatory? The accusation I am asserting is that it is a bad statistical graphic, which it is. Would you care to argue the opposite?

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