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Now add the entries in each column to find Ex; and Ex?. Sample data, Xi Sample data values squared, x, 17 172 = 289 12

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Now add the entries in each column to find Ex; and Ex?. Sample data, Xi Sample data values squared, x, 17 172 = 289 12 122 = 144 4 16 10 100 8 64 Ex; =0 Ex? =

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