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Equation 13 · Part 1 · Measuring AI Agent Reliability: What the Evidence Actually Supports

Symbol n

nn
nn

What this part means

the two formulas share the same.

Its job in the formula

n is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Where the article explains it

The two formulas share the same n , c , and k and the same combinatorial machinery, and that similarity is precisely the point: they are estimating two different probabilities from the same data, one about the best of k attempts and one about the consistency of all k of them.

The passage around this formula

The two formulas share the same n , c , and k and the same combinatorial machinery, and that similarity is precisely the point: they are estimating two different probabilities from the same data, one about the best of k attempts and one about the consistency of all k of them. A system can score well on the first and badly on the second, and a report that only states pass@k while an agent is actually being deployed to run the same class of task repeatedly, unsupervised, with no way to pick the lucky run, is answering a question nobody was asking.

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the article section

These citations provide research context; check each source for the exact claim it supports.