Instruction: Provide an example of how array formulas can be used to perform complex calculations across multiple data ranges.
Context: This question tests the candidate's understanding of array formulas and their ability to use them for advanced data analysis.
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Imagine you're tasked with analyzing sales data across multiple regions, each of which is stored in separate ranges within your spreadsheet. You're interested in calculating the total sales for a specific product across all these regions. This scenario is perfect for an array formula because it allows you to aggregate data across these separate ranges without the need for cumbersome manual summation or intermediate steps.
First, let's clarify the assumption here: we have three ranges, A2:A10, B2:B10, and C2:C10, each representing sales data for the same product across three different regions. We want to find the total sales for this product. A traditional approach might involve summing each range individually and then adding those sums together. However, with an array formula, we can streamline this process....