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Bartek specializes in the sale of office supplies and has several branches across the country. An extract of the annual sales of a sample of

Bartek specializes in the sale of office supplies and has several branches across the country. An extract of the annual sales of a sample of 22 branches and the corresponding adult population for each city where the branch is located is available. The following summaries are provided below:

image text in transcribed
EX = 2012,4 EY = 2485,5 i-1 I- EX =166085,22 XY = 199198.75

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