Summation Signs With Two Variables Practice

Please perform the following summation exercises with two variables: ΣXY and (ΣX) * (ΣY)

Keep the order of operations in mind. Here are the steps to follow.

• ΣXY: First operation: Multiply the X Y pairs, like X₁ * Y₁ and so on. Second - Add
• (ΣX) * (ΣY): First operation: Add the X and Y sets separately. Second - multiply ΣX and ΣY

*** Waiting for answers ***

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