What Key Technical Developments Made It Possible for the Phonograph

question 94

Essay

What key technical developments made it possible for the phonograph to evolve from a laboratory novelty into a major commercial product?

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Definitions:

Standard Deviation

A metric that calculates how much a collection of data points deviates or spreads out from the average value.

Normal Model

A probability distribution that is symmetric about its mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

English Exam

A standardized test designed to assess a person's proficiency in the English language.

Normal Model

A statistical model that describes how data points are dispersed or distributed in a pattern that resembles a bell curve, implying a symmetrical dataset.