Chapter 8Understanding Data
In God, we trust. All others must bring data!
Edward Deming
A Story about Data Usage
Hung Le: I embarked on a trip along Highway 405 in Northern California a few years ago. At one point, I looked behind me and saw a police car flashing its light. So, I slowed down immediately and pulled over. The police officer politely asked me for my driver's license. After checking it, he asked whether I knew why he had pulled me over. I responded: “I am sorry, Officer. But I am not sure.” He then told me that my speed was recorded well over 20 miles of the speed limit per his radar readout. After a short exchange, he wrote me a hefty speeding ticket and informed me of a court date if I chose to ...
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