Sir am not able to understand the difference between positive feedback adn negative feedback?
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feedback control
6y ago#1Variance analysis is feedback control.
If the variance is adverse, we try to correct the problem so as to reduce the adverse variance in the future - this is negative feedback.
If the variance is favourable, we try to take action so as to increase the variance in the future - this is positive feedback.
(However I have no idea why you are interested in this for Paper PM. Just knowing what feedback and feedforward control are is quite sufficient :-) )
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