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Extras

Video thumbnail: NOVA The Wisdom of the Crowds

NOVA

The Wisdom of the Crowds

Crowds hold a predictive power that can have startling accuracy.

The Wisdom of the Crowds

Video thumbnail: NOVA Prediction by the Numbers Prologue

NOVA

Prediction by the Numbers Prologue

Discover why some predictions succeed and others fail as experts forecast the future.

Prediction by the Numbers Prologue

Video thumbnail: NOVA What is a P-Value?

NOVA

What is a P-Value?

Science's most important number has its origins in a British experiment involving tea.

What is a P-Value?

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