What is a Weighted Average?

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To see all my Chemistry videos, check out http://socratic.org/chemistry What is a weighted average? How do you calculate a weighed average? It is a type of a...

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chemistry, physics, math, khan, academy, brightstorm, ap, ib, honors, sat, oat, dat, mcat, atom, atomic, mass, weight, proton, neutron, electron, nucleus, nu...

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