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THE FEUTEX TOOLKIT

Study Recall Error Budget

Find maximum errors permitted to reach a target recall rate.

Education workspace● Runs in your browser
01 Your input
02 Your result
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FormulaAllowed errors = Math.floor(items*(1-target/100)+1e-9); Improve = Math.max(0,errors-Math.floor(items*(1-target/100)+1e-9))

Made for real tasks

  • Find maximum errors permitted to reach a target recall rate.
  • Compare two scenarios by changing the inputs and rerunning the tool.
Explore step-by-step workflows →

Worked example

Inputs

Items
80 items
Target
90 %
Errors
12 items

Expected results

Allowed errors
8 items
Improve
4 items

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter items, target, errors.
  2. Use consistent units shown beside each input. Run the calculation and review the assumptions below.

Try this example

{
  "items": 80,
  "target": 90,
  "errors": 12
}

Accuracy and scope

Each item is counted once as correct or incorrect. Maximum permitted errors are rounded down; the improvement count assumes the existing test size remains fixed.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.