Overview

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3.8 (91 ratings)
  • 5 stars
    36 ratings
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    9 ratings
ZM

Aug 20, 2019

interesting material, well taught, lots of short quizzes to enforce understanding.

MM

Jun 05, 2017

This course quite help to get as much reliable data as possible for any survey.

From the lesson
Specific Steps

Taught By

  • Richard Valliant, Ph.D.

    Richard Valliant, Ph.D.

    Research Professor

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