Do you know the origin to this?

Posted by David FG February 20, 2005In reply to Do you know the origin to this? posted by Kim Jeffery on February 20, 2005

I'm looking for the origin of the phrase "shift to the left".
Any ideas?

I am sure, given the context it means a move to the left of the 'bell curve' of a graph.

(Mr) David FG (which will make sense to UK medics if none else - given that I am a medic)