For two groups of observations, the following results are available : Σ(Χ-5) - 3 E(X – 5)? = 43 N = 18 Group 1 Group II E(X – 8) = – 11 E(X – 8)? = 76 %3D N2 = 17 Find the mean and standard deviation...

For two groups of observations, the following results are available :<br>Σ(Χ-5) - 3<br>E(X – 5)? = 43<br>N = 18<br>Group 1<br>Group II E(X – 8) = – 11<br>E(X – 8)? = 76<br>%3D<br>N2 = 17<br>Find the mean and standard deviation of 35 observations obtained by combining the two group<br>

Extracted text: For two groups of observations, the following results are available : Σ(Χ-5) - 3 E(X – 5)? = 43 N = 18 Group 1 Group II E(X – 8) = – 11 E(X – 8)? = 76 %3D N2 = 17 Find the mean and standard deviation of 35 observations obtained by combining the two group

Jun 10, 2022

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For two groups of observations, the following results are available : Σ(Χ-5) - 3 E(X – 5)? = 43 N = 18 Group 1 Group II E(X – 8) = – 11 E(X – 8)? = 76 %3D N2 = 17 Find the mean and standard deviation...

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