Mathematics
Mathematics, 25.04.2021 14:40, heyyy6096

In a data mean (x) = 12, the number of terms (N) = 40 and Efx = 400 + 16a. Find the value of a.​

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In a data mean (x) = 12, the number of terms (N) = 40 and Efx = 400 + 16a. Find the value of a.​...

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