Vocabulary

Understand the term. Connect the concept.

A practical dictionary of 512 AI, machine learning, mathematics, and programming terms from HerbDev’s AI Vocabulary app. Start with a definition, explore an example, then follow the concepts behind it.

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Standard Deviation

Statistics & Probability · Level 2 of 5

Standard Deviation

The square root of variance.

It expresses spread in the original measurement units.

Example

A model reports typical temperature variation in degrees.

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Audio transcript

Standard Deviation. The square root of variance. It expresses spread in the original measurement units. For example: A model reports typical temperature variation in degrees.

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Why it matters

This helps you interpret numerical evidence without overstating what it establishes.

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Variance

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