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Following diagram is from a Wikipedia article which shows Quantum Correlation for local hidden variables and Quantum Mechanics and experiments confirm Quantum Mechanics predictions.

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My question is why the curve at left side (0-180 degree) is not symmetric with the curve on right side (180-360 degree) although on each side the curve is symmetric with horizontal line?

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Because of sloppy drawing. The curve should be symmetric.

Solution: pay graphic artists more! :D

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  • $\begingroup$ Wondering how cosine could be asymmetric or I'm missing something about Bell's theorem. $\endgroup$ – Xaqron May 24 '13 at 2:43

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