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Practical Guidance for the 3-Stage Process
"All models are wrong, but some are useful." George Box, statistician
"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.