excel-statistical-formulas SKILL.md skillA
excel-statistical-formulas from cxcscmu/skilllearnbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cxcscmu/skilllearnbench/excel-statistical-formulas@git:20260424.d50cf5aPins git:20260424.d50cf5a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cxcscmu/skilllearnbench
- Path
skills/b1-one-shot-claude-haiku-4-5/weighted-gdp-calculation/excel-statistical-formulas/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260424.d50cf5a, committed Apr 24, 2026
- Size
- 4,045 bytes
- Repository stars
- 91
- License
- MIT
Use Excel statistical functions for descriptive analysis including percentiles, weighted calculations, and data summaries.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Excel Statistical Formulas ## Overview Statistical functions in Excel calculate measures like mean, median, percentiles, and enable weighted calculations for economic data analysis. ## Core Statistical Functions ### Basic Descriptive Statistics **MIN** - Returns the smallest value ``` =MIN(range) =MIN(H35:L40) ``` **MAX** - Returns the largest value ``` =MAX(range) =MAX(H35:L40) ``` **MEDIAN** - Returns the middle value ``` =MEDIAN(range) =MEDIAN(H35:L40) ``` **AVERAGE** - Returns the arithmetic mean ``` =AVERAGE(range) =AVERAGE(H35:L40) ``` ### Percentile Functions **PERCENTILE** - Returns the kth percentile of a dataset ``` =PERCENTILE(range, k) ``` Where k is a decimal (0.25 for 25th percentile, 0.75 for 75th percentile) **Examples:** ``` 25th Percentile: =PERCENTILE(H35:L40, 0.25) 75th Percentile: =PERCENTILE(H35:L40, 0.75) ``` **PERCENTILE.INC vs PERCENTILE.EXC:** - PERCENTILE.INC: Inclusive method (older PERCENTILE function) - PERCENTILE.EXC: Exclusive method (newer, statistical best practice) ## Weighted Mean Calculation ### SUMPRODUCT for Weighted Mean The SUMPRODUCT function multiplies corresponding elements in arrays and returns the sum of products. …
Read the whole file at its exact version.
How to install
mdr add cxcscmu/skilllearnbench/excel-statistical-formulas@sha256:875a7a4fe3c715c3The line at the top of this page pins the label git:20260424.d50cf5a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_obvpre46fdxhig5o)
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Versions
The registry has recorded 1 version of this file, committed on Apr 24, 2026.
Audit of the latest version
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Source
cxcscmu/skilllearnbench · 91 stars · license MIT · pushed 2026-10-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_obvpre46fdxhig5o GET https://markdownregistry.com/api/v1/resolve?ref=cxcscmu/skilllearnbench/excel-statistical-formulas GET https://markdownregistry.com/api/v1/blob/875a7a4fe3c715c3f522a58452177b77fded0fea48fee146bf821dddfe05b6a9
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Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.