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Practical Guidance for the 3-Stage Process
"All models are wrong, but some are useful." George Box, statistician
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"If you don't know where you're headed, you're gonna wind up somewheres else." Yogi Berra, ballplayer
Where are we headed?
A useful model keeps you from flying blind.
Where could we go?
A useful model points youin the right direction.
How can we get there?
A useful model is practical,not based on wishful thinking.
You can learn to builda useful model.