stats-methods SKILL.md skillA
stats-methods from vm0-ai/vm0-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vm0-ai/vm0-skills/stats-methods@git:20260709.c4cfc48Pins git:20260709.c4cfc48 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vm0-ai/vm0-skills
- Path
stats-methods/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260709.c4cfc48, committed Jul 9, 2026
- First version recorded
- Mar 13, 2026
- Size
- 9,835 bytes
- Repository stars
- 81
- License
- none declared
Apply statistics for summaries, tests, distributions, experiments, outliers, and trends.
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
## Summarizing Numeric Data ### Choosing a Center Metric | Data Characteristic | Recommended Measure | Rationale | |---|---|---| | Symmetric, outlier-free | Mean | Maximally efficient estimator | | Asymmetric or outlier-heavy | Median | Unaffected by extreme values | | Non-numeric or ranked | Mode | Sole option for categorical data | | Business KPIs like revenue per user | Both mean and median | The gap between them reveals skewness | **Guideline:** For any business metric, present the mean alongside the median. When they differ substantially, the distribution is skewed and the mean by itself will mislead. ### Quantifying Variability - **Standard deviation**: Typical distance from the mean; best suited to bell-shaped data. - **IQR (interquartile range)**: Gap between the 25th and 75th percentiles; resistant to extreme values. - **Coefficient of variation**: Standard deviation divided by the mean; enables apples-to-apples variability comparison across different scales. - **Range**: Maximum minus minimum; gives a quick but outlier-sensitive view of data spread. ### Telling the Story with Percentiles Go beyond averages by reporting a percentile ladder: ``` …
Read the whole file at its exact version.
How to install
mdr add vm0-ai/vm0-skills/stats-methods@sha256:f4e2cc63b01de1dbThe line at the top of this page pins the label git:20260709.c4cfc48, 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_r5wug7mkxdrhi3d2)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 13, 2026 and Jul 9, 2026, about one every 39 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260709.c4cfc48 latest | 2026-07-09 | c4cfc48 | 9,835 B | A | view · diff |
| git:20260417.8c5d7c1 | 2026-04-17 | 8c5d7c1 | 10,069 B | A | view · diff |
| git:20260417.b284b7a | 2026-04-17 | b284b7a | 10,370 B | A | view · diff |
| git:20260313.d7233e4 | 2026-03-13 | d7233e4 | 10,246 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9835 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
vm0-ai/vm0-skills · 81 stars · license none declared · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_r5wug7mkxdrhi3d2 GET https://markdownregistry.com/api/v1/resolve?ref=vm0-ai/vm0-skills/stats-methods GET https://markdownregistry.com/api/v1/blob/f4e2cc63b01de1db585f314d4260ef10c6df7c8438e7c0550febda46e4c953f0
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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.