A electronics retailer list the sales (in thousands) of certain products in three cities for the prior quarter. During that period tablets sold for $343, laptops sold for $348, cell phones sold for $272, ar DVR sold for $1,781. City 1 City 2 City 3 Tablets 35 49 39 Laptop Computers Cell Phones 59 60 71 78 75 55 Personal DVR 48 33 69 City 1's total sales : thousand dollars City 2's total sales |thousand dollars City 3's total sales : thousand dollars

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