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Excel analysis

Skill cxcscmu/SkillLearnBench/skills/b1-one-shot-gemini-3.1-flash-lite-preview/weighted-gdp-calculation/excel-analysis

Techniques for statistical analysis in Excel including weighted means, percentiles, and rounding.From its SKILL.md

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npx -y skills add cxcscmu/SkillLearnBench --skill excel-analysis

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SKILL.md

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Weighted Mean

Use SUMPRODUCT to calculate the weighted mean. Formula: =SUMPRODUCT(values_array, weights_array) / SUM(weights_array) Ensure the result is multiplied by 100 if the values are proportions.

Percentiles

Use the PERCENTILE.INC function. Formula: =PERCENTILE.INC(array, k) where k is 0.25 for 25th percentile and 0.75 for 75th.

Rounding

Use the ROUND function to limit decimal places. Formula: =ROUND(value, 1) If the value is a percentage in proportion format (e.g., 0.123), use =ROUND(value * 100, 1).

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