Mathematics

Mathematics, 14.12.2020 14:00, 22nathanieltimms

If a+b+c+d=20 and a^2+b^2+c^2+d^2=108 then the variance of the data is?

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If a+b+c+d=20 and a^2+b^2+c^2+d^2=108 then the variance of the data is?...

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