Rows a sample needs to see a rare defect

How it behaves

One input on the horizontal axis, the others held fixed.

Worked examples, recomputed

Every number the mechanisms quote for this relationship is recomputed from it, so none of them disagrees with it.

• p = 1%, 95% → about 300 rows
• p = 10⁻⁶ → about 3,000,000 rows

Where it appears

Each mechanism states it in its own names. The general symbol each name stands for is shown with it.

• Data Quality & Validation

  How do you check that data is right, when "right" is a claim about the world and not about the bytes?

  $$n\approx -\ln (\beta )÷p$$

  Read it in place →